Is congress and senate the same? How do the various houses work?

Think of it like a building with two rooms. Congress is the whole building, the entire legislative branch of the US federal government, the part that writes and passes laws. Inside it sit two separate chambers, or houses. That two-chamber setup is why people call it a bicameral legislature, from the Latin for "two rooms."

The Senate

The Senate has 100 senators, with two from each state regardless of how big or small that state is. Wyoming gets two, California gets two. That equal-state design was a deliberate choice to protect smaller states from being drowned out. Senators serve six-year terms, with elections staggered so roughly one-third of the Senate is up for reelection every two years. That staggering is why the Senate is sometimes called a "continuous body" — most of it carries over every election.

The Senate has unique powers, including confirming presidential appointments, ratifying treaties, and conducting impeachment trials. It is also where the 60-vote threshold we discussed earlier — the one that makes passing most legislation hard — applies most sharply.

The House of Representatives

The House has 435 voting representatives, with the number per state determined by population. So California sends dozens of representatives, while Wyoming sends one. Representatives serve two-year terms, meaning the entire House is up for election every two years. That shorter cycle keeps them more directly answerable to voters.

The House initiates revenue-related legislation — meaning all tax bills must start there — and has the sole power to impeach federal officials. The Senate then holds the trial if an impeachment comes over.

How a bill actually becomes law

A bill must pass both the House and the Senate and then be signed by the President to become law. Both chambers have to agree on the exact same version of the text. If they pass different versions, representatives from both sides meet to hammer out a single version, then each chamber votes again. Only after all of that does it go to the President's desk.

So when you hear "Congress passed a bill," that means both the House and the Senate voted yes. When you hear specifically "the Senate blocked it," it means it cleared the House but died in the other room. They are related, but they are not the same thing.