The secret is out, and the campaign starts for real now, two weeks before the Democratic National Convention in Chicago. Kamala Harris picked Minnesota Gov. Tim Walz (D) to be her running mate on Tuesday. Dr. Thomas Gray, assistant professor of political science at UT-Dallas. joined Ask the Expert on Tuesday.

<p>The secret is out, and the campaign starts for real now, two weeks before the Democratic National Convention in Chicago. Kamala Harris picked Minnesota Gov. Tim Walz (D) to be her running mate on Tuesday. Dr. Thomas Gray, assistant professor of political science at UT-Dallas. joined Ask the Expert on Tuesday.</p>

KRLD afternoon anchors Kristin Diaz and David Rancken speak to a specialist in any given field every day for their “Ask the Expert” segment.

<p>KRLD afternoon anchors Kristin Diaz and David Rancken speak to a specialist in any given field every day for their &ldquo;Ask the Expert&rdquo; segment.</p>

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