David Steinglass, a wealthy donor, has supported scores of Democrats running for office and calls himself an activist for transgender rights.

So his donation earlier this year to a far-right candidate in Wisconsin’s U.S. Senate race seemed wildly out of character. He gave the maximum $3,300 to help get a man on the ballot who had these items in his background: He was investigated in the plot to kidnap Michigan Gov. Gretchen Whitmer, he is a gun rights activist and he has called for banning some gender-affirming treatments for minors.

Far from an anomaly, the donation is part of a larger design. Steinglass’ contribution to “America First” candidate Thomas Leager, and thousands more he and his wife gave to other far-right independents in key congressional races, is supporting a plan to boost Democrats and siphon votes from Republicans, an Associated Press examination found.

As the election cycle enters an urgent, final five weeks, both Democrats and Republicans are engaging in questionable tactics that threaten to subvert the democratic process by trying to shape the ballot through deceptive means.