This summer one tiny-shelled invertebrate has dominated the conversation about keeping non-native species out of Montana.

Since zebra and quagga mussel larvae were detected in Tiber Reservoir last summer, local, state, tribal and federal agencies have scrambled to enact programs and policies to keep the mussels out of Montana’s waterways.

Montana’s senators on Tuesday took opposite votes on whether to begin debate on repealing and replacing the Affordable Care Act.

The Garfield County Sheriff is lifting the evacuations for property owners in the Lodgepole Complex Fire area. That’s thanks to more favorable weather conditions that have allowed firefighters from 34 states to make some progress on trying to contain the massive 390 square mile fire.

The Senate voted Tuesday to begin debating a replacement for the Affordable Care Act. It remains uncertain as to what that replacement might look like. No formal legislation has been drafted. But senators moved to take the procedural first step, known as a "motion to proceed." The vote was 51-50, with Vice President Pence casting the tiebreaking vote.

Debate will now begin, most likely on a measure to fully repeal the law, also known as Obamacare.

Updated 6:30 p.m.

Crews tackling the Lolo Peak fire have switched from hand tools to heavy logging equipment to quicken the construction of a control line in the highway 12 corridor. Public Information Officer Mike Cole says the roughly 1000-acre fire in the Selway Bitteroot Wilderness is expected to eventually move down slope and this line will create a barrier for homes abutting national forest land.

"Know your audience" is usually the first rule of public speaking. But that doesn't really seem to matter all that much to President Trump.

Trump became overtly political in yet another setting that some are seeing as crossing the line — in a speech to the Boy Scouts.

Ironically, Trump began his remarks Monday night promising not to talk about politics.

Updated at 3:26 p.m. ET

Uber's leadership already has a lot on its plate, starting with finding a new CEO after former chief Travis Kalanick resigned abruptly last month. But that's not all the tech giant has to do. For the business to survive, Uber also has to repair its relationship with drivers, which leaders at the company say is "broken."