No. 2 in the statehouse Crossword Clue

 The answer to the crossword clue "No. 2 in the statehouse" is LTG, which is the abbreviation for Lieutenant Governor. The Lieutenant Governor is the second-highest ranking official in a state government, typically after the Governor. They typically preside over the state senate and act as the Governor's successor in the event of their death, resignation, or removal from office.

Here are some other possible answers to the clue, although they are less common:

2nd

Vice

Second-in-command

Deputy

Understudy

I hope this helps!