The Missouri House of Representatives has endorsed a bill that would require annual written authorization for public employee unions to receive dues automatically deducted from a worker’s paycheck. The measure, known as “paycheck protection” would require approval for unions to spend worker fees on political activities. Supporters say it gives public employees more control over how unions spend their fees. However, opponents say it would be an undue burden on those who want to participate in a union. Governor Jay Nixon vetoed similar legislation last year and to avoid another veto, supporters may have to put it on the august ballot. The bill needs one more vote before going to the Senate.