Partisan shots on the floor Thursday when the Minnesota Senate approved a bill clarifying the state’s new agriculture “buffer zone” law that was passed just last year. Pointing to corrections made in business tax measures last session, Republican Minority Leader David Hann said it seems to be a pattern for the Democratic majority. Hann said the legislature does something one year over the minority’s objections “that turns out to be kind of a disaster and then we come back the next year and we fix it.” Senate Democratic Majority Leader Tom Bakk called Hann’s statement “purely inaccurate.” Bakk said the buffer law passed last year was negotiated by House Republicans — members of the same party as Hann — and by Governor Mark Dayton.