Bernie Sanders
Bernie SandersReuters

After winning blowout victories in three western states on Saturday, Bernie Sanders has enjoyed a massive spike in donations, with well over $4 million pouring into his campaign’s coffers by Monday afternoon according to an Associated Press report.

Sanders swept all three Democratic caucuses on Saturday, winning Hawaii 70% to 30%, Washington state 73% to 27%, and Alaska by a whopping 82% to just 18% for former Secretary of State Hillary Clinton.

Within less than 48 hours after his victories, Sanders managed to raise a whopping $4 million, one of his biggest cash hauls ever.

The Vermont Senator also enjoyed some good news from pollsters, with the latest national poll of Democratic primary voters giving Sanders a one-point lead over his Democratic rival. That poll, conducted by Bloomberg just days ahead of his trifecta on Saturday, is only the second national poll that shows Sanders beating Clinton.

Sanders is reportedly preparing an ad campaign blitz in the upcoming primary states of Wisconsin, New York, and Pennsylvania. Sanders only trails Clinton by a few points in the latest Wisconsin polling, but is losing by double digits in polls for both Pennsylvania and New York, Clinton’s home state as a US Senator.

Despite Sanders’ big wins on Saturday, the self-described democratic socialist is still far behind in the delegate count. Clinton currently leads Sanders in pledged delegates, 1,243 to 975. Add to that Clinton’s huge advantage with superdelegates, and Sander’s has few plausible paths left to the nomination.

Including superdelegates – party leaders who are free to back whomever they choose – Clinton now controls 1,712 delegates total, or about 72% of the 2,383 total needed to win the nomination. Sanders, on the other hand, has a total of 1,004, or 42% of the necessarily 2,383.

While Sanders fresh wins on Saturday and the renewed vigor they’ve given his campaign are unlikely to propel him to the nomination, they may hamper Clinton’s efforts to pivot away from the primaries and focus her energies on November’s general election.

Ahead of Saturday’s Democratic caucuses, Clinton hardly even addressed her Democratic challenger, instead targeting her most likely GOP opponent, Donald Trump.

If Sanders wins Wisconsin, however, Clinton will be forced to renew actively campaigning against him, and may be forced to offer him a major role in the Democratic National Convention this summer, pushing the party further to the left and complicating her general election campaign.