Does the president of the senate become president of the us if the president and vice president die?

Yes, if both the President and Vice President of the United States die or are otherwise unable to serve, the President pro tempore of the Senate is next in line to assume the presidency, according to the Presidential Succession Act. However, it is important to note that the President pro tempore is typically a senior member of the majority party in the Senate and may not hold that position for long if a new administration is formed. The order of succession continues with other officials, such as the Speaker of the House and members of the Cabinet.