Senate to hear from Comey; Dems raise new Sessions questions

WASHINGTON -- James Comey, fired last month as FBI director amid a federal investigation into connections between Russia and the Trump campaign, is set to testify Thursday at a highly anticipated congressional hearing that could shed light on his private conversations with the president in the weeks before his dismissal.

The Senate intelligence committee announced Comey's appearance, and a Comey associate said he had been cleared to testify by Robert Mueller, another former FBI director overseeing that investigation as special counsel.

Also on Thursday, Democrats raised more questions about contacts during the campaign between the Russian ambassador to Washington, Sergey Kislyak, and President Donald Trump's attorney general, former Sen. Jeff Sessions, R-Ala.

Sessions, a close Trump adviser, withdrew from the Russia investigation in March after acknowledging two previously undisclosed contacts with Kislyak last summer and fall.

Sens. Patrick Leahy, D-Vt., and Al Franken, D-Minn., released a letter urging the FBI to investigate whether Sessions had testified falsely under oath when he said at his January confirmation hearing he hadn't had any contacts with Russia.

"If it is determined that the attorney general still has not been truthful with Congress and the American people about his contacts with Russian officials during the campaign, he needs to resign," the senators wrote.

In addition to the two meetings Sessions has acknowledged, the senators pointed to the possibility of a separate encounter at an April 2016 Trump campaign event Sessions and Kislyak attended.