Tiffany Trump wore white to the State of the Union, matching many Dems

Tiffany Trump, front center, arrives to hear President Donald Trump deliver his State of the Union address to a joint session of Congress on Capitol Hill in Washington, Tuesday, Feb. 5, 2019. Tiffany Trump, front center, arrives to hear President Donald Trump deliver his State of the Union address to a joint session of Congress on Capitol Hill in Washington, Tuesday, Feb. 5, 2019. Photo: Andrew Harnik, AP Photo: Andrew Harnik, AP Image 1 of / 24 Caption Close Tiffany Trump wore white to the State of the Union, matching many Dems 1 / 24 Back to Gallery

Among the audience assembled in the House of Representatives during the State of the Union on Tuesday night, there was a block of women clad in all-white that stood out in the crowd.

The legislators, who wore white as a nod to the outfits donned by the suffragettes, were nearly all Democrats (many Democratic men also donned white pins in a show of solidarity). Rep. Lois Frankel, D-Fla., chairwoman of the House Democratic Women's Working Group, encouraged the outfit choice.

"Wearing suffragette white is a respectful message of solidarity with women across the country, and a declaration that we will not go back on our hard-earned rights," she said.

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"Tonight, our Democratic #WomenWearWhite in support of women's rights -- in spite of a @POTUS who doesn't!" Speaker Nancy Pelosi, D-Calif., wrote on Twitter alongside a photo of a group of white-clad lawmakers.

But they had some unlikely company on the sartorial front.

Tiffany Trump, Donald Trump's younger daughter, also wore white to the State of the Union.

The outfit inspired chatter and speculation on social media.

"Someone didn't get the message that only Democratic women were wearing white. Or did she?" tweeted Victoria Brownworth.

Kimberly Guilfoyle, former first lady of San Francisco and girlfriend of Donald Trump Jr., also wore white, but it didn't seem as if many people suspected her of being sympathetic to the Democrats.

"If you think either of these women are showing solidarity with the Democrats, your nuts," wrote one pro-Trump Twitter user.

President Trump acknowledged the wave of women who swept into office in the midterms at one point during his speech, prompting some of them to stand and cheer.

"You weren't supposed to do that!" he chided, drawing chuckles from the crowd.

Filipa Ioannou is an SFGATE staff writer. Email her at fioannou@sfchronicle.com and follow her on Twitter