Photos: Primary Day in Maryland, nationwide

Anthony Btown, former lieutenant governor of Maryland, is congratulated after winning the Democratic primary for Maryland's 4th Congressional district. (WTOP/Alan Etter) — Anthony Brown, former lieutenant governor of Maryland, is congratulated after winning the Democratic primary for Maryland’s 4th Congressional District. He will likely face George E. McDermott in the November general election. (WTOP/Alan Etter)

Anthony Brown beat former two-term state’s attorney Glenn F. Ivey in Maryland’s 4th District Democratic primary on April 26. (WTOP/Alan Etter)

Catherine Pugh, a three-term state senator who owns a public relations firm, celebrates Tuesday, April 26, 2016, in Baltimore after winning the democratic nomination in Baltimore’s mayoral race. (AP Photo/Juliet Linderman) — Catherine Pugh, a three-term state senator who owns a public relations firm, celebrates Tuesday, April 26, 2016, in Baltimore after winning the Democratic nomination in Baltimore’s mayoral race. (AP Photo/Juliet Linderman)

Republican presidential candidate Donald Trump speaks during a primary night news conference, Tuesday, April 26, 2016, in New York. (AP Photo/Julie Jacobson)

AP Photo/Julie Jacobson

Kathy Szeliga, a Republican member of the Maryland House of Delegates, won the GOP nomination for U.S. Senate. (AP Photo/Brian Witte)

AP Photo/Brian Witte

Democratic presidential candidate Hillary Clinton speaks at her presidential primary election night rally, Tuesday, April 26, 2016, in Philadelphia. (AP Photo/Matt Rourke)

AP Photo/Matt Rourke

Democratic U.S. Senate candidate, Rep. Chris Van Hollen, D-Md., left, embraces supporter Carole Price after an election night party in Bethesda, Md., Tuesday, April 26, 2016. Van Hollen defeated Rep. Donna Edwards, D-Md., in the Democratic primary for U.S. Senate. (AP Photo/Patrick Semansky)

Democratic U.S. Senate candidate, Rep. Chris Van Hollen, D-Md., speaks at an election night party in Bethesda, Md., Tuesday, April 26, 2016. Van Hollen defeated Rep. Donna Edwards, D-Md., in the Democratic primary for U.S. Senate. (AP Photo/Patrick Semansky)

Democratic U.S. Senate candidate, Rep. Chris Van Hollen, D-Md., center, celebrates with campaign staff and volunteers after an election night party in Bethesda, Md., Tuesday, April 26, 2016. Van Hollen defeated Rep. Donna Edwards, D-Md., in the Democratic primary for U.S. Senate. (AP Photo/Patrick Semansky)

David Trone, who spent $12 million on his bid for the Democratic nomination in the 8th District of Maryland, concedes to Jamie Raskin. (WTOP/Dick Uliano)

Maryland State Sen. Jamie Raskin won the Democratic primary for Maryland's 8th Congressional District. (AP Photo/Brian Witte) — Maryland State Sen. Jamie Raskin won the Democratic primary for Maryland’s 8th Congressional District. (AP Photo/Brian Witte)

Democratic presidential candidate Hillary Clinton stands with former President Bill Clinton at her presidential primary election night rally, Tuesday, April 26, 2016, in Philadelphia. (AP Photo/Matt Rourke)

AP Photo/Matt Rourke

The scene from Rep. Chris Van Hollen’s election-night event in Bethesda. (WTOP/Michelle Basch)

Democratic presidential candidate Bernie Sanders, I-Vt., speaks during a rally on Tuesday, April 26, 2016, Huntington, W.Va. MANDATORY CREDIT (Sholten Singer/The Herald-Dispatch via AP)

Sholten Singer/The Herald-Dispatch via AP

The scene from candidate David Trone's campaign headquarters. (WTOP/Dick Uliano) — The scene from David Trone’s campaign in Maryland. (WTOP/Dick Uliano)

Democratic U.S. Senate candidate, Rep. Chris Van Hollen, D-Md., second from left, greets volunteers inside his field office in Baltimore, Tuesday, April 26, 2016. Van Hollen is running against Rep. Donna Edwards, D-Md., in the Democratic primary for U.S. Senate. (AP Photo/Patrick Semansky)

Democratic U.S. Senate candidate, Rep. Donna Edwards, D-Md., center, and her son Jared, back left, greet volunteers outside a polling place at Winfield Elementary School in Windsor Mill, Md., Tuesday, April 26, 2016. Edwards is running against Rep. Chris Van Hollen, D-Md., in the Democratic primary for U.S. Senate. (AP Photo/Patrick Semansky)

Republican presidential candidate Sen. Ted Cruz, R-Texas, speaks during a rally at the Hoosier Gym in Knightstown, Ind., Tuesday, April 26, 2016. (AP Photo/Michael Conroy)

AP Photo/Michael Conroy