This is big: Mitch McConnell's super PAC just booked $10 million in TV ads in Montana.

McConnell knows Steve Bullock can win this crucial Senate race, so he's going to try to bury him in a massive onslaught of negative ads. It's the tried-and-true McConnell playbook, and it could work.

Will you pitch in $10 or more to help us respond to this massive wave of spending from McConnell's corporate donors?

If you've saved your payment information with ActBlue Express, your donation will go through immediately:

Chip in $10 now Chip in $25 now

Chip in $50 now Chip in $100 now

Chip in $250 now Another Amount

Here's what Mitch McConnell doesn't want you to know about Steve Bullock, and why McConnell's calling in his corporate donor network for backup:

As Governor of Montana, Steve worked with both Democrats and Republicans to expand access to affordable health care for everyone.

He fought to protect public lands and passed one of the strongest campaign finance laws in the country.

He went everywhere, listening to folks from every background and in every corner of the state to bring people together and make real change.

Now, he's running for Senate to bring this common-sense attitude to Washington and get things done. That's exactly what has McConnell and his corporate donors so scared.

We need your help to cut through the noise of McConnell's ads and make sure voters across Montana know the real Steve Bullock. Will you pitch in $10 or more right now?

If you've saved your payment information with ActBlue Express, your donation will go through immediately:

Chip in $10 now Chip in $25 now

Chip in $50 now Chip in $100 now

Chip in $250 now Another Amount

We have the opportunity to make a real difference in this election, and we can't let McConnell's corporate donors stop us. Thanks for being a part of this grassroots team.

— Team Bullock