The senate ratifies treaties with a two third majority.
Every two years, one-third of the Senate goes up for reelection.
The title for the two floor members are: senate majority leader and senate minority leader
After the elections of 1918, US senate was dominated by Republicans. However, even the majority party was divided over the issue of Treaty of Versailles. Woodrow Wilson despite all his efforts could not muster required two third majority to ratify the treaty.
House Leadership: Majority Party Speaker of the House Majority Leader Assistant Majority Leader Majority Whip Minority Party Minority Leader Assistant Minority Leader Minority Whip Senate Leadership President of the Senate is the Vice President of U.S. President Pro Tempore--Senator of the Majority Party with Seniority Majority Leadership Senate Majority Leader Assistant Senate Majority Leader Senate Majority Whip Minority Leadership Senate Minority Leader Assistant Senate Minority Leader Senate Minority Whip
A two-thirds majority of the Senate is required to convict the President from office. A simple majority in the House suffices to impeach and force the Senate to hold a trial.
There is one Majority Leader in the United States Senate. This position is held by the leader of the political party that holds the most seats in the Senate. As of September 2021, the Majority Leader is Chuck Schumer of the Democratic Party.
Six; every two years, a third of the Senate is removed/reelected.
A two-thirds majority of the Senators voting is required to convict the President from office. (A simple majority in the House suffices to impeach and force the Senate to hold a trial.)
As of the 2012 election, the Democratic Party has the majority. There are 53 Democrats in the US Senate, and the two independent senators caucused with the Democrats, so the majority party has 55 seats. The minority party, the Republican party, has 45 seats.
Democrat and Republican parties are the major parties in both Houses. Currently, the Republican Party holds a majority in the House, and the Democrats hold a majority in the Senate.
A two-thirds majority means that 2/3 of a voting body is required to agree to something. A simple majority means that one vote more than 1/2 is required. For example, in the U.S. Senate, a 2/3 majority is 67 out of 100 senators, and a simple majority is 51 out of 100. In the case of a tie vote of 50 yes votes and 50 no votes, the Vice President, who is president of the Senate, casts a vote to break the tie.