As of my last update, the base salary for a member of the U.S. House of Representatives is $174,000 per year. Senators also earn a base salary of $174,000 annually. However, there are some differences in compensation for leadership positions: for example, the Speaker of the House earns a higher salary, typically around $223,500.
Regarding the Vice President's tie-breaking vote, the Vice President of the United States serves as the President of the Senate. In this role, the Vice President can cast a vote in the Senate to break a tie when there is an equal division on a vote. This means that if the Senate is evenly split (for example, 50-50 on a particular piece of legislation), the Vice President can step in and cast a vote to determine the outcome. This power is significant because it can allow the ruling party to push through legislation or confirm appointments even when they do not have a clear majority in the Senate.
Please verify with up-to-date sources as this information may change or evolve over time.