WASHINGTON — First lady Melania Trump.

If that prospect evokes no clear image, that’s no accident. Donald Trump’s wife has said little in the campaign about the type of first lady she’d like to be should her husband win the Republican nomination and the presidency. The distance, she’s said, is intentional so she can focus on the couple’s 9-year-old son, Barron.

But should he become the GOP candidate for the fall, the Slovenian-born model, mother and multilingual speaker would face big decisions about her family, her life and her potential position in American history. The presidential voting starts when Iowans caucus Feb. 1.

For now, Melania Trump is her husband’s top supporter at events, a striking brunette swathed in couture, frequently seen but seldom heard. Her first campaign turn came in Myrtle Beach, South Carolina, in November, as the candidate called his family on stage during a rally. Turning to Melania, his third wife, Trump asked if she’d like to say something.