Article snippet: MORE (D-Mass.) overtakes him in some polls. Trump and his allies are placing a big bet that they can tear Biden down by implicating him in a Ukraine scandal that has engulfed the administration and provoked House Democrats to launch an impeachment inquiry. The Trump campaign is putting millions of dollars behind Biden-Ukraine ads in Iowa, New Hampshire, Nevada and South Carolina, with the sole intention of damaging him among Democrats in the early-voting states. Warren’s rise has also become a real threat to Biden, whose front-runner status is being challenged in earnest for the first time this year. Four months out from the Iowa caucuses, Biden’s team is already talking about looking beyond the Hawkeye State, where the two most recent surveys show Warren with a slight edge. Warren has also caught Biden in recent national polls and surveys of New Hampshire and Nevada. Third quarter fundraising numbers also have set off alarms in Biden World after he placed fourth among White House hopefuls, bringing in just over $15 million, a $7 million decline from the second quarter. Warren and Sen. MORE brought in $19.2 million. “This is either the beginning of the end, or the moment where they flip the switch and it all comes together,” said one Democratic fundraiser who supports Biden. “But the signs are not pointing in a good direction right now.” Trump’s Ukraine scandal has become a major drag on Biden’s campaign, leaving allies split over the best way forward. There is n... Link to the full article to read more