Freeman answering the question of evidence that Trump is in bed with the Russians: (I've added numbers to his reasons so that they can be discussed individually)
(1) I think seeking to undermine the NATO is a big one. (2) The willingness to withdraw from the world stage (like withdrawing from Syria). (3)The support for Brexit. (4)The lack of support for democratic institutions. From spurious allegations of illegal voting, to attacks on the media, to attacks on the Truth (or at least a set of agreed facts that we can agree on), a propaganda machine/ press secretary that sounds like something coming from a totalitarian regime, (5) a complete lack of concern about Russian attempts to undermine faith in voting, (6) the cozying up to Russia sending a terrible signal to the world. This a wish list for Russia. (7) They want to undermine European containment of Russia and undermine democratic institutions. And Trump is all in on that. I doubt very, very much that Trump just happened to have a set of core beliefs that align perfectly with Russia.
I doubt the oil thing was intentional. That was too much part of his platform about drill baby drill, keep coal jobs, etc for him to alter. Also, it helps the economy. (8) The opposition to German pipeline deal I think again is an attempt to divide Europe, not that Trump gives a hoot about Germany getting oil from Russia. Whatever short-term negative economic aspects that Trump has had on Russia, I am sure Putin is willing to live with given the long-term political benefits he is getting from Trump
(1) There's some truth to this. I think he's trying to get the other NATO countries to give their fair share. Germany gives about 1.2% of their budget to defense, although they are a wealthy country with surpluses. Trump's tactics are over the top, but his predecessors (going back to Reagan or earlier) have failed in getting other NATO countries to give their fair share.
(2) He ran on this. It's what his base supports. They elected him to do precisely this. That's evidence that he keeps his campaign promises unconstrainted by the establishment, which he also ran on.
(3) The Brexit vote was June 2016 before Trump was elected. I think the US has very limited influence here and we are correct to let the UK and Europe sort it out.
(4) I hate this part about Trump, but the notion that he is doing it to please Russian puppet masters is far fetched.
(5) Yes, this is puzzling about Trump. I think he sees it as an attempt to delegitimize his election, and cannot get past that.
(6) This one isn't evidence, just a restatement of your position. I probably shouldn't have flagged it.
(7) The more established Europeans (Germany, Italy) are undermining their own containment of Russia. Trump is supporting front line Europeans such as Poland. He's trying to teach the Europeans that their actions have consequences and that the US isn't infinitely patient.
(8) The pipeline deal suggests that Germany is in bed with the Russians, not Trump. He is throwing his weight around to prevent it, but the US doesn't have sufficient cards. This gas pipeline is a big deal and the fact that Germany wants to do it in spite of the US defending them for 70+ years, and Russian incursions into Ukraine and Syria is outrageous. Germany won't pay for its own defense and is deciding to become economically beholden to Russia.
I think the US response to Russian troops in Venezuela will be very interesting on answering this question. My view is that we should respond harshly including military support to the opposition. If Russian and Cuban troops are killed as a result of supporting a murderous dictator who starves his own people, so be it. Perhaps that would prove that Trump is not in bed with the Russians.