St. PAUL, Minn. — Lara Trump thinks that her father-in-law, President Trump, could use some extra support at this particular stage of his presidency. So along with Karen Pence, the second lady, Ms. Trump traveled to this (slimly) blue state with a message for women who support him: Don’t be afraid to speak up — and by all means, please speak up.

“We know it’s not easy sometimes to be a Trump supporter,” she said in praise of the hundreds of women, most of them white, who attended her Women for Trump event this month. “We appreciate you so much. You stand up for what you believe in.”

Onstage next to her, Mrs. Pence, an evangelical Christian whose initial distaste for Mr. Trump’s unchaste behavior has been widely reported, gave rare public testimony about how much she thinks Mr. Trump respects women.

“I just want to encourage you not to be afraid,” Mrs. Pence told the group gathered in a conference room in St. Paul’s historic train station. “This time, we have a record, so it’s like, you can’t tell me stuff on the fake news.”