CNN and TV One are hosting a primetime Democratic town hall Sunday, two days before five states are holding primary elections that are vital in the race to the nomination. Vermont Sen. Bernie Sanders and former Secretary of State Hillary Clinton are both slated to appear at the town hall, to be held at Ohio State University in Texas at 8 p.m. ET.

CNN's Jake Tapper and TV One's Roland Martin are scheduled to host the event, which will follow the same format as previous town halls. CNN has so far hosted five this year, both Democratic and Republican. Questions for the candidates are generated by the moderators and Ohio voters.

Of the five states holding primaries Tuesday — Florida, Illinois, Missouri, North Carolina and Ohio — Clinton leads Sanders 61 percent to 34 percent in Florida, 51 percent to 45 percent in Illinois, and 58 percent to 38 percent in Ohio, according to the latest NBC/Wall Street Journal/ Marist polls.

In those states, Clinton also leads among African-American voters, whereas among Latinos the gap narrows. In Illinois, in fact, Sanders is beating Clinton among Latino voters, 64 percent to 30 percent. In North Carolina and Missouri, Clinton has the lead over Sanders as well, recent polling shows. 

As of Sunday, Clinton has amassed 1,231 delegates, including 465 superdelegates who are not tied to any one state, while Sanders has 576, of which 25 are superdelegates. A candidate needs 2,383 to win the nomination. The number of remaining, unallocated delegates is 2,958. For Tuesday's primaries, Florida has 246 delegates, Illinois 182, Missouri 84, North Carolina 121 and Ohio 160.