It would be funny if we actually got a Libertarian in the senate. Anyways, still Safe R. Pretty cool that they are time travelers
At least this poll indicates that Harrington is getting the Democratic vote, so he should at least be able to keep Cotton to a "normal" winning margin for a Republican (which, using 2016's presidential and Senatorial results as a baseline, and excluding other options, would be something like 60-40% or thereabouts). Cotton's not going to get >80% like his predecessor Mark Pryor did in 2008.