house republicans escalating probe into president biden. a couple hours from now, the full house will vote on formalizing a biden impeachment inquiry. the gop s probe has failed to show links between biden and his son s questionable business dealings. republicans think the resolution will give them more leverage. this morning hunter biden showed up at the capitol right outside as you see, offering to testify publicly in the probe. but republicans want a closed door interview first. so, now, they say they re going to pursue a contempt of congress referral against hunter biden. manu raju has been following this. you ve been a busy man on capitol hill today. what do we expect to see in the coming hours? reporter: we expect the republicans will get the vote to authorize the impeachment inquiry. the inquiry has been going on since september, when then speaker of the house kevin mccarthy announced this investigation would go forward. they don t need a vote to authorize the inquir