If you want proof, just go ask Manafort why he was giving secret GOP polling data to a suspected FSB agent. It was clear Putin would rather have Traitor Trump in the White House Hillary, who had already kicked him in his Moscow balls several times. BTW, let's not forget Trump pardoned Manafort to keep him from spilling the beans. One more thing, he did the same for Roger Stone, who was caught on tape threatening Trump if he didn't get a pardon.
Lastly, in order to show you I not some blind loyalist, if it's ever proven President Biden or his son did broke any laws, they should go straight to jail. Unfortunately, your side would never say that about Trumplestiltskin.
Paul Manafort concedes he gave Trump campaign polling data to the Russians
https://washex.am/3P4ewTT
Trump commutes Roger Stone's sentence. Here's why he did it
via @YouTube