Indiana is the 25th state President Trump has visited since taking office

After his tax speech in Indiana on Wednesday, President Trump will have visited half of the country since the start of his presidency.

The 25-state milestone was noted by CBS News' Mark Knoller.

We don't know if visiting all 50 states during his presidency is on Trump's to-do list, but if he did it, he would join a short list U.S. leaders who have accomplished the task: Richard Nixon, George H. W. Bush, Bill Clinton and Barack Obama.