TOPEKA — Roger Marshall and Adam Hamilton will test in November the legacy of nearly a century of partisan dominance by Republicans over Democrats in U.S. Senate elections in Kansas. Campaign spending in the Senate contest was expected to surpass $50 million during the next three months, said Bob Beatty, a political science professor at Washburn University in Topeka. “My guess is, once Trump endorsed, (Masterson) was at you know maybe 40 points, and just sort of … coasted through the election,” Beatty said. Holscher also took an anti-establishment approach in the primary, Beatty said. The judicial election amendment on Tuesday’s ballot failed 61% to 39%, while the previous abortion amendment was defeated 59% to 41%.