The Senate is expected to vote on the farm bill before the July 4 recess after the Senate agriculture committee last week easily advanced a bipartisan proposal on a 20-1 vote.

“I do think a 20-1 vote certainly indicates we have a sold, bipartisan majority,” said Senate Ag Committee Chair Pat Roberts of Kansas.

Unlike the House, where a farm bill vote failed last month, the Senate measure makes only minor modifications to current nutrition and commodity programs in hopes of securing broad support. American Farm Bureau President Zippy Duvall praised the spirit of...