George Mason High School senior and first time voter Aisha Rupert (center) tests out the demonstration voting machine at one of three polling places around Falls Church where city residents are casting their ballots in the Virginia presidential primary today. Fellow Mason senior and first time voter William Earman (right) and Devon Keith, a sophomore at Mason who is one of many Mustangs taking time out from school to volunteer at polling places today, look on while Rupert gives the voting machine a go.

Both the Democratic and Republican presidential primaries are being held today in Virginia as part of Super Tuesday, where 13 states and an American territory hold primaries and caucuses.