Conservative and Free Market groups are attacking the Senate Farm Bill for spending too much - and some groups expect to target members who vote for the measure.

The conservative Club for Growth and Heritage Action say they’ll push Tea Party fiscal hawks to defeat the Senate Farm Bill over new commodity spending and not enough food stamp cuts. The groups expect to key vote the Senate bill - punishing members on the groups’ annual scorecards for voting for the bill.

Meantime - the free-market oriented American Enterprise Institute slams the Senate bill in a new study for its shallow-loss revenue program that AEI argues will save nothing when prices are low. Co-Author Vince Smith…