Hillary ClintonHillary Diane Rodham ClintonColorado governor teases possible presidential run Mueller asks judge for September sentencing for Papadopoulos House Judiciary Committee subpoenas FBI agent who sent anti-Trump texts MORE seemed taken aback and sought to change the subject when reporters asked whether she has spoken with Sen. Elizabeth WarrenElizabeth Ann WarrenMulvaney aims to cement CFPB legacy by ensuring successor's confirmation Trump calls Nevada Dem Senate candidate 'Wacky Jacky,' renews 'Pocahontas' jab at Warren On The Money — Sponsored by Prudential — Trump floats tariffs on European cars | Nikki Haley slams UN report on US poverty | Will tax law help GOP? It's a mystery MORE (D-Mass.) about being her running mate.

The presumptive Democratic presidential nominee was speaking to reporters as she bought a cold tea at Uprising Muffin Company in Washington, D.C.'s Shaw neighborhood Friday.

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“Have you talked about vice presidential possibilities with Sen. Warren?” one reporter is heard asking in a video tweeted by CBS reporter Hannah Chanpong.

The presumptive Democratic nominee exaggeratedly bobs her head, widens her eyes and then laughs when a few reporters repeat the question. 

“You guys have got to try the cold chai,” Clinton responded, holding up her tea.

Warren met privately with Clinton on Friday morning amid increasing speculation that Clinton will tap her to be her running mate.

The meeting came just one day after Warren formally endorsed Clinton for president.