Senate Democrats have once again delayed debate on a bill to ban lawmakers and their families from trading stocks. On Thursday, Oregon Democratic Senator Jeff Merkley told Business Insider that any vote on the congressional stock trading ban will have to wait until after November’s midterm elections. Massachusetts Democrat Elizabeth Warren responded, “Every day that we delay on passing meaningful restrictions on stock trading among members of Congress is a day that further erodes the credibility of this body.” Ethics watchdog Walter Shaub of the Project on Government Oversight accused Senator Merkley of “slow-walking” the legislation until the Senate’s calendar ran out. This week The New York Times reported at least 97 current lawmakers — or their close family members — have bought or sold stocks or other investments that intersected with their legislative committee work.