LOL, this is not safe R and not even likely. Lean R is about right for the moment, as of Dec. '18. If a Dem prez is elected with at least the 2012 Obama margin, this seat should flip.
This, but Vilsack is a terrible candidate. He would be Strickland 2.0, just as Beebe would be Bredesen 2.0.
Certainly not my first choice. The said previous "recycled" and failed candidates teach us we need fresh new faces running for office in swing or lean R territory. That Sholten dude seems to be a strong contender for '20 and Abby Finkenauer for '22, which is probably an open seat.