John: Nate Silver's FiveThirtyEight says Democrats CANNOT take back the Senate if we lose in Maine – and a brand new poll shows Democrat Sara Gideon DOWN BY ONE POINT.

Now, Mitch McConnell and GOP outside groups are ready to spend whatever it takes to buy Susan Collins' reelection in Maine, because who wins Maine will determine who controls the Senate and the future of the Supreme Court. 

Maine's Senate seat is mission-critical – but right now, we're dangerously close to losing it and throwing away our best chance at taking back the Senate. We're running out of time before Election Day, and this race (and the Supreme Court's future) is still a TOSS-UP, John.

That's why this news is a GAME-CHANGER: President Barack Obama just endorsed Sara in this MUST-WIN race to defeat Susan Collins! He is ALL IN to flip Maine blue and take back the Senate.

But Sara needs grassroots supporters like YOU to go all in, too. Right now, she's falling behind on the $20,000 she needs to raise by midnight, and the only way she can close the gap is with YOUR immediate gift to win in Maine and stop two more years of a Mitch McConnell-led Senate.

Join President Obama, John, and go ALL IN on flipping Maine – and the Senate (!) – blue: Give $5 – every dollar you can – to win in Maine, take back the Senate for Democrats and protect the future of the Supreme Court!