MADISON, Wis. — Democratic Senate candidate Russ Feingold says Hillary Clinton is “reliable and trustworthy,” but if she becomes president she may want to end the Clinton Foundation.

Questions have been swirling about whether Clinton crossed ethical lines during her tenure as secretary of state by talking with people outside the government who had contributed to her family’s philanthropy foundation.

Feingold says it’s important if Clinton were elected president that there be “no questions” about the group’s work and that the “highest level of scrutiny” be applied to it.

Feingold is running against Republican Sen. Ron Johnson for the Senate. Johnson’s campaign manager Betsy Ankney calling Clinton “reliable and trustworthy” is “yet another example of how out of touch with Wisconsin values Sen. Feingold has gotten.”