That website is very unreputable and goes way over the top in attacking Trump. I read the linked articles and watched the relevant videos, and here's what I found:

• garbage truck incident - he didn't "almost fall over," he just missed the handle on the first grab, that's it, it's a nothing-burger
• Dems want to get rid of windows and cows - couldn't find the relevant video, and the only one with this quote linked to the above site; at a separate rally, he claims Harris wants to get rid of red meat, so I guess that kind of explains the cows thing? I need to see the clip before I take a call here

The context of the Liz Cheney quote was about her being a "war hawk" and wanting to stay in Iraq longer. Basically, he ranted about bureaucrats acting all tough because they want to go to war, but they would act very differently if they were the ones in a warzone. So the "guns trained on her face" would presumably be a firing line (i.e. if she's captured as POW and executed, or tried and executed for war crimes), and his point was that she doesn't consider the consequences for wanting to go to war in the Middle East.

That said, screw Trump. I have never voted for him, and I have already submitted my ballot this year and again did not vote for that clown. But this website has terrible spin and you shouldn't trust anything it says because it takes things way out of proportion and doesn't even link/host the original content. Look for yourselves, the actual content is taken way out of context here.