After the DNC hacked emails made its way to Wikileaks there have been many security experts who have said it was the Russian government who is responsible for the hacks.
Josh Meyer, of NBC News has an extensive report on this called "Why Experts Are Sure Russia Hacked the DNC Emails"
During yesterday's Special Report With Bret Baier being hosted at the DNC convention, Fox News' George Will believes that Comrade Trump has ties to Russian oligarchs, which is one of the main reasons why he won't release his tax returns.
“Both the campaign chair and anybody you talk to, including Senator [Chris] Murphy (D-Conn.) would not go down that road once pressed on the connection between Russia and the Trump campaign. But they have thrown it out there. George?” Bret Baier asked Will.
“Well, it’s the sort of thing we might learn if we saw the candidates’ tax returns. Perhaps one more reason why we’re not seeing his tax returns because he is deeply involved in dealing with Russia oligarchs and others. Whether that’s good, bad or indifferent, it’s probably the reasonable surmise,” Will said in response.
There's also the big chance that Trump doesn't have the kind of money he says he does.
And let's not forget what Trump said about Putin.
— POLITICO (@politico) February 1, 2016