roadblock on capitol hill tonight after an all-out push for democrats' voting legislation. the president unable thus far to unite his party to pass it peter alexander is at the white house. >> reporter: president biden on the hill to deliver a sales pitch. instead tonight signaling surrender for now on his push for democratic voting rights legislation >> i don't know that we get it done but i know one thing, as long as i have a breath in me, as long as i am in the white house, as long as i am engaged at all, i'm going to be fighting. >> reporter: the president once again unable to get his own party to pass a key priority before he went to the democrats at the capitol today kyrsten sinema took to kyrsten sinema took to the senate floor, reiterated her opposition to changing senate rules that would have allowed rights bills on their own, arguing the filibuster promotes bipartisan ship. >> while i continue to vote these bills, i will not support separate actions that worsen the underlying disease of division infecting our country. >> reporter: sinema expressing