I ran for the United States Senate because I wanted to protect working families from another financial crisis.

I spent most of my adult life studying how America’s middle class was getting squeezed by rising costs and stagnant wages. The 2008 financial crisis was a punch to the gut for a lot of those families — and a lot of them are still struggling to recover years later. I never dreamed of running for office. But when I realized that running for the Senate from Massachusetts was my best chance to try to help middle-class families and prevent another crisis from ever happening again, I ran.

"The people of Massachusetts didn’t send me here to fight for big banks. They sent me here to fight for them."

Since I’ve come to the Senate, I’ve worked to reduce the risk of another crisis by pushing for stricter oversight and more accountability for the biggest banks. I’ve introduced bipartisan legislation to break up the biggest banks. I’ve pressed federal regulators to impose accountability on companies like Wells Fargo that break the law and cheat their customers — and they’ve done it. I’ve led a bipartisan effort to stop the Federal Reserve from re-creating the kind of backdoor bailout of big banks that happened in 2008.

I’ve also worked with my colleagues to try to tailor the rules for community banks and credit unions, institutions that didn’t cause the 2008 crash. In 2015, I introduced a bill with each of my Democratic colleagues on the Banking Committee that loosened the rules on banks and credit unions with under $10 billion in assets — true community institutions — while also creating new consumer protections for servicemembers. I fought alongside my colleagues to pass that bill, and I’d do it again. But that proposal didn’t have enough goodies for Wall Street — so it went nowhere.

This week, the Senate began advancing a bill that reduces oversight of some of the biggest banks in the country. The independent Congressional Budget Office says the bill will increase the risk of future bailouts. It’s a dangerous proposal. Senate Republicans voted unanimously for it — but the bill wouldn’t be on track to becoming the law without the support of more than a dozen Senate Democrats.

That’s just the truth. But since I called out some of my Democratic colleagues for their support, I’ve been taking heat from fellow Democrats. I get it — no one likes to be criticized, let alone by someone on their team. And let’s be totally clear: I agree with my Democratic colleagues a heck of a lot more than I agree with my Republican ones.

But there’s a long history in Washington of members of both parties teaming up to deregulate banks — followed soon after by a financial crisis. It happened in the early 1980s when there was bipartisan support for deregulating savings and loans associations — and the S&L crisis hit a few years later. It happened in 1999 and 2000 with the repeal of Glass-Steagall and the passage of a bill to reduce oversight of derivatives — and a devastating financial crisis built on giant megabanks and risky derivatives hit within a decade. And now, with help from some Democrats, it’s on track to happen again.

Saying that doesn’t make me the most popular kid on the team. But that’s not why I ran for the Senate. The people of Massachusetts didn’t send me here to fight for big banks. They sent me here to fight for them. And so long as I am privileged to hold this job, that’s exactly what I’m going to do. ​