Democrats are heading to Rochester Friday for the DFL Party state convention, looking to endorse a candidate to take on U.S. Sen. Norm Coleman, R-Minn., this fall. While Al Franken is the favorite to win the endorsement, he is facing a challenge by Jack Nelson-Pallmeyer. As part of a MinnPost video series on candidates’ campaign speeches, here‘s Nelson-Pallmeyer addressing the state Senate District 61 convention March 29 at South High School in Minneapolis. To view a speech by Franken, go here. An address by Coleman will appear on MinnPost later.