Speakers at the opening night of the Democratic National Convention in Philadelphia included Illinois Congressman Luis Gutierrez.

Illinois Democrats joined fellow party members in Philadelphia Monday for the Democratic National Convention. But state politics, not the national scene, was the focus of the delegation’s first official day of business.

On the 21st: We'll talked about the Democratic National convention and got an overview of politics in Illinois. Plus, we spoke with researchers about a new research study out today that may lead to the development of better diagnostic tools for Zika infection. And, a teenage fashion designer shares how she turned her passion into a business.

Republicans had their turn last week in Cleveland; now it’s Democrats' turn. Illinois’ delegates to the Democratic National Convention are in Philadelphia, where they’re set to nominate Hillary Clinton for President.