by roughly $50 billion. he certainly is eager to see what what that discussion can entail. reporter: but that offer left the two sides still more than $700 billion apart after biden tried to break the log jam, suggesting he would drop his original offer by roughly $1 trillion and took changes to the 2017 tax law off the table, a central gop ask. the white house now open to other bipartisan talks, including a group that includes senator joe manchin, a linchpin vote for biden s agenda who has rejected calls for the president to end bipartisan negotiations. i think we will come to that compromise where we will find a bipartisan deal. i m very confident of that. reporter: but the clock is ticking and without manchin on board biden s options are limited with infrastructure talks just one piece of the $4 trillion economic agenda biden wants passed by the end of this