In euchre, trump is the suit declared during bidding that outranks all other suits for that hand. The trump suit has 7 cards: the Right Bower (Jack of trump — highest card in the game), the Left Bower (Jack of the same-color suit — it joins trump for the hand), plus the Ace, King, Queen, 10, and 9 of the trump suit. Any trump card beats any non-trump card regardless of rank. The Left Bower rule — where the same-color Jack changes suits — is the most important and most commonly misunderstood rule in euchre.
Trump is the most important concept in euchre. Every hand revolves around it — bidding establishes which suit is trump, the entire card hierarchy shifts around it, and nearly every strategic decision you make involves how to use or defend against trump cards. Understanding trump completely, including the often-confusing Left Bower rule, is the single most important step in learning to play euchre well.
What Is Trump in Euchre?
Trump is the suit selected during bidding that outranks all other suits for the duration of that hand. Any trump card automatically beats any non-trump card, regardless of rank. An ordinary 9 of trump beats the Ace of any other suit.
Trump changes every hand. After each deal, the trump suit is determined through a bidding process (described below). Nothing carries over — the trump suit that dominated last hand is irrelevant once the next hand begins.
The 7 Trump Cards
In standard euchre, the trump suit contains 7 cards, not 6. This is because the Jack of the same-color suit joins the trump suit for the hand — a rule that surprises most new players.
The 7 trump cards, ranked from highest to lowest:
| Rank | Card | Notes |
|---|---|---|
| 1st | Right Bower | Jack of the trump suit — highest card in the game |
| 2nd | Left Bower | Jack of the same-color suit — joins trump for this hand |
| 3rd | Ace of trump | Highest “normal” trump card |
| 4th | King of trump | |
| 5th | Queen of trump | |
| 6th | 10 of trump | |
| 7th | 9 of trump | Lowest trump card |
Which Suit Is the Left Bower For Each Trump?
| Trump Suit | Right Bower | Left Bower |
|---|---|---|
| Hearts ♥ | Jack of Hearts | Jack of Diamonds ♦ |
| Diamonds ♦ | Jack of Diamonds | Jack of Hearts ♥ |
| Spades ♠ | Jack of Spades | Jack of Clubs ♣ |
| Clubs ♣ | Jack of Clubs | Jack of Spades ♠ |
The pattern: same-color pairs. Hearts and diamonds are both red; clubs and spades are both black. The Left Bower is always the Jack of the other suit in the same color pair.
The Left Bower Rule (The Most Important Rule in Euchre)
The Left Bower creates confusion for more players than any other rule. Here it is, stated as clearly as possible:
The Left Bower changes suits for the entire hand. It is no longer a member of its printed suit — it is trump.
Example: If hearts are trump, the Jack of diamonds is the Left Bower. For that entire hand:
- The Jack of diamonds is not a diamond. It is hearts (trump).
- If diamonds are led, you are not required to play it — and you cannot play it to follow the diamond suit lead.
- If trump (hearts) is led, you must play it if it’s your only trump card.
- It ranks second overall — above the Ace of hearts, below only the Jack of hearts (Right Bower).
This trips up experienced players too. A player who leads diamonds expecting to draw out the Left Bower will be disappointed — the Left Bower holder has no obligation to follow diamonds.
Non-Trump Card Rankings
In non-trump suits, the card hierarchy is the standard descending order:
Ace → King → Queen → Jack → 10 → 9
There is one critical exception: the Jack of the same-color suit as trump is missing from its printed suit. It has migrated into trump.
Example: If hearts are trump, the diamond suit only contains 5 cards during play: Ace ♦, King ♦, Queen ♦, 10 ♦, 9 ♦
The Jack of diamonds is gone from diamonds — it’s the Left Bower (trump). Any player who “holds diamonds” cannot use the Jack of diamonds to follow a diamond lead.
How Trump Is Selected
Trump is chosen through a bidding process at the start of each hand. The process has two rounds.
Before Bidding: The Kitty
After dealing 5 cards to each player, the remaining 4 cards go face-down as the kitty. The top kitty card is turned face-up — this card proposes the first possible trump suit.
Round 1: The Turned-Up Card
Starting with the player to the dealer’s left and going clockwise, each player may:
- Order it up: Tell the dealer to take the face-up card into their hand (the dealer discards one card face-down). The suit of the turned-up card becomes trump. The player who ordered it up is the maker.
- Pass: Decline. Next player decides.
If all four players pass, the turned-up card is placed face-down.
Round 2: Name a Suit
Starting again with the player to the dealer’s left:
- Name a suit: Choose any suit except the one just turned down. That suit becomes trump. The player who named it is the maker.
- Pass: If all four pass again, the hand is typically redealt (or the dealer is forced to name trump under Stick the Dealer rules).
The maker’s team is on offense — they must win at least 3 of 5 tricks with their chosen trump.
Trump Rules During Play
Following Suit
When trump is led, you must play a trump card if you hold one. This includes the Left Bower — if you hold the Jack of the same-color suit and trump is led, you are required to play it (it is trump).
When a non-trump suit is led, you must follow that suit if able. Remember: the Left Bower is not available to follow its printed suit — it is trump.
Playing Trump When Void
If the led suit is a non-trump suit and you hold no cards of that suit, you may play any card in your hand — including trump. Playing trump on a non-trump lead is called trumping in and is a legal, common, and often powerful play.
You are never required to trump in — if you’re void in the led suit, you may play any card, including a low card you want to discard. But playing trump when void is often the correct strategic choice.
The Revoke (Reneging)
If you play a card that does not follow the led suit despite holding a card of that suit, you have committed a revoke (also called reneging or ruffing). This is the primary rules violation in euchre.
The standard penalty: The opposing team scores 2 points — the same as a euchre. The hand is abandoned at the point of discovery.
Common revoke situations:
- Forgetting the Left Bower is trump, then playing it off-suit when diamonds (for example) are led
- Accidentally playing a trump card while still holding a card of the led non-trump suit
- Leading trump from the wrong hand (not the trick winner’s hand)
Trump Strategy: The Fundamentals
Call Trump When You Have Enough
The minimum hand worth calling trump: 3 trump cards including at least one bower. Two trump cards alone is usually too weak — the opponents collectively hold more trump than you, giving them the advantage.
Strong trump hands for calling:
- Both Bowers + any 1 trump = near certain to win 3 tricks, strong going-alone candidate
- Right Bower + Ace of trump + 1 more trump = solid call
- 3+ trump including one bower = standard calling hand
Lead Trump After You Call It
When you call trump, your strongest strategic play is usually to lead trump immediately. Leading trump forces the opponents to either spend their high trump cards or lose the trick. This clears the way for your off-suit winners later in the hand.
Exception: if you hold a bare Ace in a non-trump suit (no other cards of that suit), consider cashing it before leading trump — once opponents void themselves in that suit, they can trump your Ace.
On Defense, Be Careful with Trump
As a defender, leading trump when you’re weak in it tends to help the maker count cards and deplete the defenders’ resources. Generally, defenders should lead their strongest off-suit card first, forcing the maker to use trump on a trick they otherwise might not. Lead trump defensively only when you hold both Bowers or have a clear trump-stripping plan.
Common Trump Misconceptions
“The highest card of the led suit always wins.” Only true if no trump card has been played on the trick. Any trump card, even the 9, beats the Ace of any non-trump suit.
“The Jack of diamonds always belongs to diamonds.” Not when diamonds — or the other red suit — is trump. The Jack of the same-color suit always migrates into trump. Know your Left Bower for the current hand before every trick.
“You can always choose whether to play trump or not.” No — when trump is led, you must follow trump. When any suit is led, you must follow it if you hold that suit. Your choice only exists when you’re void in the led suit.
“The turned-up card is always trump.” Only if someone orders it up in Round 1. If all four players pass, the turned-up card is turned face-down and a different suit becomes trump in Round 2.