Kansas Republicans kicked off the 2024 legislative session byquickly passing their flat income tax rate plan. But then they waited as long as legally allowed to send Democratic Gov. Laura Kelly the bill. She promptly vetoed it. Nearly four weeks then passed until Tuesday, when the GOP leaders in the House finally attempted to override the second-term governor’s veto. They failed,coming three votes shy of the two-thirds majority needed. Now, with about six weeks left in the regular session, Republicans are looking for the path forward on taxes. They returned to Topeka in January with tax relief…