how many people showed up for trump's rally

It depends which Trump rally you mean. For the July 4 National Mall event, reports described a large crowd, but they did not give one single verified count in the snippets I found, and some coverage noted that people left before Trump spoke because of weather and delays.

If you mean the Great American State Fair rally in Washington, Trump said at least 45,000 people attended.

What I found

• National Mall July 4 rally: coverage described a cheering crowd, but the available snippets don’t provide an exact attendance figure.

• Great American State Fair rally: Trump claimed “at least 45,000” attendees.

• Some later commentary and photo-based coverage suggested the crowd looked smaller than Trump’s framing implied.

Bottom line

If you want the most direct number tied to the rally in the search results, it’s 45,000+ for the Great American State Fair event. For the July 4 National Mall rally, the material I found supports only a general description of a sizable crowd, not a precise verified count.