>> Mr. President.>> Thank you.>> Has Mueller crossed a red line with Deutsche Bank?>> Donald Trump not addressing what could be a critical turn in the Russia probe. That special counsel Robert Mueller has issued a subpoena to Deutsche Bank seeking information on the president's own accounts.
Reuters correspondent Tom Bergin is covering the story.>> This is a very big development today for a number of reasons. Firstly, it is a clear investigation of the affairs of the President and the President's family. Before today we had the indictment of Paul Manafort and the light being shown on a number of Trump associates, but today is a direct light being shown on President Trump's own finances.
>> Germany's largest bank has lent the Trump organization hundreds of millions of dollars for real estate ventures even after a string of bankruptcies at Trump's hotel and casino businesses during the 1990s made most other big banks weary of extending him credit.>> People wondered why one bank that was standing out in that way.
And that's, of course, in more recent times, led to all kinds of speculation. Not least because Deutsche Bank is highly involved in Russia, and it has had some troubles there. It has been investigated in a number of jurisdictions with respect to behaviors that went on in Russia. So this has led a number of people to try and sort of link things up together.
Mueller is investigating alleged Russian attempts to influence the US presidential election. Both Russia and Trump have denied any collusion and there has been no hard evidence that Deutsche Bank is a link between the two. But a source tells Reuters the subpoena issued weeks ago will probe certain money and credit transactions.
>> If a bank lends someone money they can then sell that loan on to other parties. So there have been questions around did Deutsch Bank sell any of these loans to Russian parties.>> Holding such debt could potentially give those Russian parties some leverage over Trump. Trump's lawyer denied any subpoena had been issued.