Wyoming Senate candidate Liz Cheney (R) is once again seeking to emphasize her family's roots in the state in a new TV ad released Monday. This time, she's letting her three daughters make the case.

"Our family first came here in 1852 walking the Mormon Trail," notes of one Liz Cheney's daughters. Adds another: "My great-great-grandfather first settled in Fremont County in 1907."

The ad also mentions Liz Cheney's parents Lynne and Dick Cheney. The latter served as vice president and represented Wyoming in Congress for a decade years earlier.

In her bid to unseat Sen. Mike Enzi (R), Liz Cheney has gone to great lengths to illustrate her family's long history in Wyoming, as some have expressed skepticism about the fact that she moved back to the state last year after spending much of her adult life in Northern Virginia. Her first TV ad touched on the subject, as did the online video that served to kick off her campaign.

Liz Cheney's campaign is speeding about $40,000 — a substantial amount in a state where airtime is relatively cheap — to air the commercial, a person familiar with the buy size confirmed to Post Politics. Politico first reported the investment last week.

Liz Cheney has come under renewed national attention in the past week or so following an escalation in her public feud over gay marriage with younger sister Mary Cheney, who is a lesbian. Mary Cheney and her wife Heather Poe have publicly rebuked Liz Cheney's opposition to same-sex marriage.

The primary is next August.