MT-Sen: Rosendale gets a boost from Trump Jr. as a new poll hits the campaign

As Donald Trump Jr. visited Montana to give Republican candidate Matt Rosendale a boost in his bid to unseat Democratic Senator Jon Tester, a new poll showed he's going to need all the help he can get.

The poll from Gravis Marketing was released Tuesday and gave the incumbent Democrat Tester a nine percentage point lead over the Republican challenger, 51 percent to 44 percent, respectively.

Democrats also have a 6 percentage point lead over Republicans in an election for a seat from Montana in the U.S. House of Representatives, 49 percent to 43 percent, respectively.

Many believe the visit from Trump Jr. was representative of the animus President Donald Trump had gained for Tester after the debacle that ended up tanking his nomination for the head of the Department of Veterans Affairs. Tester was one of the sources of the unconfirmed reports that the nominee, Ronny Jackson, had several black marks on his record.

Jackson soon after revoked his nomination.

Trump Jr. spoke at a dinner for the Rosendale campaign Friday evening.

Fellow Montanan Senator Steve Daines (R) welcomed the president's son to Montana from his social media account:

As did Rosendale:

Tester and Rosendale threw a few rhetorical punches at each other over disagreements on scheduled debates after the primary election. Tester accused Rosendale of running out on their first scheduled debate, and Rosendale countered by challenging Tester to five other debates.

Tester's seat is seen as one of the weakest for Democrats, given that President Donald Trump won the state by 20 percentage points in 2016. The same Gravis poll showed that 50 percent of Montanans approved of Trump's job performance.

Here's a short video of Trump Jr's appearance in Montana: