A political group aligned with Senate Minority Leader Mitch McConnell is blanketing airwaves in Arizona, Nevada, and New Hampshire with attack ads as three Democratic incumbents struggle for reelection against Republican challenges.

One Nation, the issue advocacy organization affiliated with the Senate Leadership Fund, the McConnell super PAC, is spending $4.2 million to run television, radio, and digital ads in the three battlegrounds. The spots urge Democratic Sens. Mark Kelly of Arizona, Catherine Cortez Masto of Nevada, and Maggie Hassan of New Hampshire to oppose President Joe Biden’s $2 trillion bill of new and expanded social programs, claiming the legislation would further spike inflation.