Ohio has its primaries today, after a last-minute mid-March delay. Also today is a special election in Maryland's 7th District, to replace the late Rep. Elijah Cummings -- a test for all-mail primaries on June 2.

Tomorrow's the Ohio primaries and Maryland 7th District special election to replace the late Representative Elijah Cummings. The DNC and Biden campaign joined together for the Biden Victory Fund, to counter a similar fund between the GOP and President Trump that he's had since May 2016.

Next Tuesday, Ohio has primary elections and Maryland's 7th District has a special election to fill Representative Elijah Cummings' seat, after he passed away last fall. Plus, Everytown for Gun Safety and Moms Demand Action recognized a slew of candidates for demonstrating their commitment to gun sense.

Virtual Earth Day events happened all over the internet, with climate activists and with former VPs Joe Biden and Al Gore. Texas Democrats launched a new website to help unregistered voters get on the rolls, and New York might cancel its Democratic primary election.

It's Earth Day, and the League of Conservation Voters recently endorsed Joe Biden. Milwaukee health officials reported as least 7 people who participated in the April elections tested positive for COVID-19. And President Trump announced he plans to sign an executive order temporarily barring all immigration to the U.S.

Yesterday was the anniversary of the Columbine school shooting, and Students For Biden + Everytown for Gun Safety held a virtual town hall. Ballot measures across the country are facing challenges of gathering signatures during the novel coronavirus. What accomodations are states making?

Former Vice President Joe Biden won the Wyoming Democratic caucuses. It was the first time Wyoming had an all-mail caucus with ranked-choice voting.

Wyoming's deadline to receive ballots in the Democratic primary is today, and former VP Joe Biden is already vetting potential running mates. A Michigan court refused to dismantle a panel of independent redistricting commissioners, which will assemble after the 2020 census.

The latest partisan battleground over vote-by-mail is in New Mexico, where clerks won't be able to send out ballots to registered voters before receiving applications. Plus, MA Sen. Elizabeth Warren endorsed former VP Joe Biden.

Barack Obama endorsed his former Vice President Joe Biden yesterday. And President Trump announced he's halting funding to the WHO, pending an investigation into their response to the novel coronavirus by Trump's own administration.