By a 21-17 vote with five Republicans (Jim King, Paula Dockery, Dennis Jones, Evelyn Lynn, Mike Bennett) voting no, Brandon Sen. Ronda Storms' controversial evolution bill just passed the chamber.

But Storms' bill is markedly different from the House version sponsored by Rep. Alan Hays, leaving its future in doubt. She tried to change the bill to match Hays, which simply adds a line to required classroom construction requiring “a thorough presentation and critical analysis of the scientific theory of evolution.”

But her proposal died on a voice vote. Hays, who sat in the Senate during the vote, said afterward that he now must "strategize" to figure out his next step. His bill will be on the House floor this week, but if it passes as is it would have to come back to the Senate. And he's not sure if they'll take it.

He said his "simple sentence" bill is less likely than Storms' to be challenged in court.