Siding with the Democrats Republican Alaska Senator Lisa Murkewski, and two other Republican senators, are siding with the Democrats and saying that during the Senate impeachment trial, the Democrats should be allowed to call witnesses against Trump. If one more Republican senator joins them, the Democrats will have the votes needed to force the senate to allow witnesses against Trump to be heard.
Senator Rand Paul states that if Alaska Senator Lisa Murkewski, and three other Republican senators, do force the Senate to allow Democratic witnesses, he will vote to have Republican witnesses be heard. Senate rules will allow him to do this.
In addition, when Alaska Senator Lisa Murkewski comes up for re-election, he will make sure that everyone is reminded that she, along with the three other Republican senators, voted against President Trump during his impeachment trial.
Senator Murkewski, has made anti-Pebble votes, and statements, and having a pro-Pebble candidate replace her, would greatly increase Pebble's probability of being approved.