In the poll, 51 percent of Republicans said they would support Grassley again, but only 7 percent of Democrats and 23 percent of Independents shared that view.
It is noteworthy that his job approval rate was 45 percent. The Des Moines Register said this is its lowest reading since 1982. Grassley’s approval rating was a percentage point lower than that of the state’s other Senator, Republican Joni Ernst.
First elected in 1980, Grassley ousted Democratic incumbent John Culver in the landslide victory of Ronald Reagan’s presidential election. He is the senior Republican in the Senate – second after Vermont Democrat Patrick Leahy – and tenth on the all-time ranking. Grassley is also the second oldest member of the Senate, a few months less than California Democrat Dianne Feinstein.
The Iowa poll, conducted June 13-16 for the Des Moines Register and Mediacom by Selzer & Co. of Des Moines, was based on telephone interviews of 807 adult Iowers, of whom 630 were listed as likely voters. The margin of error ranged from plus or minus 3.5 percentage points to plus or minus 3.9 percentage points.