Crooks was registered as a Republican voter but records show he gave $15 to a progressive political action committee on the day Joe Biden was sworn into office.
Who cares what political party he supported? It hardly makes a difference. People have assassinated or attempted to just for some recognition or attention and nothing more.
It makes a difference. If he was a leftist then the right could point a finger and say that the left are dangerous killers who are trying to kill the nominee.
It kind of does matter. If it were just about any other type of person they could be like "See? Proof gay/trans/stoners/poor people/people of color/people who support abortion cause violence, let's send them all to camps" and use it to influence what bills get passed in congress.