Immigration law blocked; new Iowa poll and Congressional candidates

Laura Belin and Spencer Dirks start with news from the federal courts related to Iowa's Texas-like immigration law and last year's school book ban and "don't say gay/trans" teaching restrictions. Other topics discussed include a new Des Moines Register Iowa Poll on the presidential race, Libertarian candidates running in three of Iowa's Congressional districts, and surprising comments from U.S. Senator Joni Ernst about Donald Trump's stance toward Ukraine.