PoliticsCloses · in 725 days$1.7K volumePart of: Balance of Power: 2028 Election →

Will the Republicans win the Presidency and Senate, and the Democrats the House in 2028?

Gotcha risk

Low

0 of 4 factors flagged

Watch for: This market sets out clear and detailed mechanics for determining control of all three branches.

Read the full assessment

This market sets out clear and detailed mechanics for determining control of all three branches. The presidency relies on consensus calls from three named major networks, falling back to the inaugurated president if no consensus is reached. Congressional control has explicit mathematical definitions based on voting majorities, with thoroughly documented tie-breaking rules that look to the Vice Presidency, the President Pro Tempore, or the Speaker of the House if necessary. There are also precise specifications for how vacancies, runoffs, post-election party switches, and independent caucusing decisions are handled, leaving very little room for unexpected resolution outcomes.

Resolver
Low
Timing
Low
Wording
Low
Exceptions
Low

AI-generated analysis · google/gemini-3.7-flash ·

Current price

3%

chance

▼ −0.45 pts · 24h

Yes3¢
No97¢
R President, R Senate, D House · Yes · 1MO 0.3 H 4.5 L 0.3 C 3.5+3.1 (+885.7%)

Why it moved

No big moves in the last 7 days.

Resolution rules

This market will resolve according to the party that wins the 2028 US Presidential Election, the party that wins control of the United States Senate, and the party that wins control of the United States House of Representatives in the 2028 United States general election. The party that wins the 2028 US Presidential Election is the party whose candidate is elected as President of the United States in that election. The winner of the presidential election will be determined by the Associated Press, Fox News, and NBC, once all three sources call the race for the same party. If all three sources haven’t called the race for the same party by the inauguration date, the winner of the presidential election will be the person who is inaugurated. A party wins control of the United States Senate if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the party that wins control of the chamber is the party that wins half of the voting seats and wins the Vice Presidency in the 2028 United States Presidential Election. If the outcome remains ambiguous after applying the above criteria, the chamber will be deemed controlled by the party with which the first selected President Pro Tempore of the Congress that convenes after the specified election is affiliated. A party wins control of the United States House of Representatives if it wins a majority of the chamber’s voting seats. If no party wins a majority of voting seats, the chamber will be deemed controlled by the party with which the first elected Speaker of the House of the Congress that convenes after the 2028 general election is affiliated. The following rules govern the counting of seats for determining which party wins control of the chambers. For determining Senate control, all regular and special Senate elections that determine representation in the upcoming 121st Congress and are scheduled to take place in November 2028 as of October 31, 2028 are included. Vacant Senate seats for which no election or special election to fill the seat is scheduled to take place in November 2028 as of October 31, 2028 will be treated as held by the party affiliation of the most recent member to hold that seat. For determining House control, all House elections in the 2028 United States general election that elect voting members and determine representation in the upcoming 121st Congress are included. Where a Senate or House seat is decided by a runoff, the runoff result will determine attribution of that seat, even if it takes place after November 2028. For seats contested in the specified election, seats are attributed to the party under which the member was elected. If a member-elect changes party affiliation, or vacates their seat, between election day and the formal organization of Congress, the seat is attributed to the party under which the member was elected. For seats not contested in the specified election, seats are attributed to the party that holds the seat as of the date of the election. If a current sitting member of the U.S. Senate who is not up for election changes party affiliation or vacates their seat after the date of the election, the seat is attributed to the party under which the member was affiliated at the time of the election. Senate and House members elected as independents who formally caucus with, or, for newly elected members, who announce their intent to caucus with, a party are included in that party’s count. If the caucus decisions of members of the Senate or House elected as independents cannot be determined on the date of the election, this market may remain open until the earlier of (i) an announcement from the relevant members of their intents to caucus, or (ii) January 4th, 11:59 PM ET of the following calendar year. If no such announcement is made by January 4th, 11:59 PM ET of the following calendar year, the member will not count towards the seat count of any party. The resolution sources for this market will be the Associated Press, Fox News, and NBC for the presidential election, and official information from relevant state electoral authorities, the United States Congress, and a consensus of credible reporting for control of the Senate and House of Representatives.

Market explained

This market measures whether the 2028 US general elections result in a specific trifecta split: the Republican Party winning the Presidency and Senate control, and the Democratic Party winning House of Representatives control.

How it resolves

The market resolves Yes if the Republican Party wins the 2028 US Presidential Election and Senate control, and the Democratic Party wins House control. The market resolves No if any other combination of party outcomes occurs. For the presidency, the winner is decided once the Associated Press, Fox News, and NBC all call the race for the same party, or otherwise by the person inaugurated. For the Senate, control requires a majority of voting seats, or exactly half the seats plus the Vice Presidency, with the party of the first selected President Pro Tempore deciding any remaining ambiguity. For the House, control requires a majority of voting seats, with the party of the first elected Speaker deciding if no majority exists. Congressional control is decided by official state electoral authorities, the US Congress, and credible reporting.

Resolution source

Associated Press, Fox News, NBC, official state electoral authorities, the United States Congress, and a consensus of credible reporting

AI-generated analysis · google/gemini-3.7-flash ·