(REUTERS) U.S. Republican Senator Lindsey Graham said he wants to examine fellow Republican President Donald Trump’s business dealings for any ties to Russia, CNN reported on Tuesday, one day after the issue was raised at a Senate hearing.

Graham said it would be helpful to see Trump’s tax records but that it was too soon to say whether he would be willing to subpoena them, according to CNN.

Representatives for Graham could not be immediately reached to confirm the report or give more details. Representatives for the White House also could not be immediately reached

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