John – in just a few days, all eyes are going to be on Iowa and our race to defeat Sen. Chuck Grassley (R).

March 31 is the end of the fundraising quarter and the most important public reporting deadline of my campaign so far. With the Des Moines Register calling this race a "marquee matchup," political pundits and the GOP will be looking through our fundraising numbers to assess the strength of our campaign.

After meeting with my team, we need to raise $100,000 to hit our huge fundraising goal before the FEC filing deadline. Please, as one of my most engaged supporters, I'm asking you to make your first donation so I can hit this public reporting deadline and show Sen. Grassley and the political pundits that this campaign is a force to be reckoned with.

Since launching my campaign, I've been humbled – and quite frankly floored – by the power of our grassroots supporters. You and this team have shown up for me time and time again, and I'm truly grateful.

I know that you're with me because you're just as worried about the future of our country as I am. I don't have to tell you that right now, Sen. Grassley and the GOP are doing everything they can to turn back the clock on our country and the incredible progress we've made. Our right to choose, protections for our unions, access to affordable health care, support for working families: it's all on the line.

With the Senate split 50-50, flipping this seat blue and expanding our majority will determine whether those values and the progress we've made are preserved or destroyed – and the GOP Senate campaign arm is well equipped to protect Sen. Grassley and keep this seat red: they have more than $41 million in the bank to attack competitive challengers like me.

Nobody will work harder than I will to win in Iowa and ensure Senate control stays with Democrats, but with national Republicans already attacking us, we've got to show that this campaign is strong.

So please, I'm asking you to commit to a donation that will help us hit the most important – and public – goal of our campaign so far: rush a contribution of $5 or more right now so we can defeat Sen. Grassley in Iowa, expand our Senate majority and move our country forward.

I'll be in touch with another end-of-quarter update soon. Thank you for all that you do.

– Abby