win the most congressional races
The Democratic party, which accounts for about 34-36% of American political party affiliation.
It is called the majority party.
The Democrat Party is currently in the numerical majority in the Congress of the US.
Republicans.
a political party with an overall majority in that house.
In the 111th Congress both are Democratic Senators.
The Democrat Party has had the majority in Congress for the longest duration over the last 40 years. Out of the last 22 Congresses they have had the majority 12 times in the Senate and 14 times in the House.
When the President and the majority of Congress are of the same political party, the principle of separation of powers becomes diluted. It begins to defeat the purpose of the checks and balances system.
The heads of the political parties in Congress are the Majority Whip and the Minority Whip. These two people are elected by their own party constituents to help control what happens during a session of Congress.
No, the floor leader is not the chief officer elected by each political party in Congress. The floor leader is a member of Congress who is chosen by their party to guide and coordinate legislative activity on the floor, to advocate for their party's positions, and to communicate with party members. The chief officer elected by each political party in Congress would typically be the party leader, such as the Speaker of the House or the Majority Leader in the Senate.
Majority party
It's important for political parties to have a majority in both the legislative houses, because America parties have become extremely partisan. Members of Congress are more likely to vote along with their party's political views rather than whether or not a bill is actually good for the country. They also tend to vote the opposite of the rival party, except in very rare cases. As a result, a majority in both houses, can lead to all that party's political bills being passed.