Democrat Hillary Clinton and Republican Donald Trump scored respectively at least four of the first seven Super Tuesday contests, garnering an early advantage over their rivals for the 2016 presidential nomination contests, according to multiple media projections.

On the Democratic side, Clinton widened her lead over Vermont Senator Bernie Sanders with victories in four of her so called six “southern firewall” states, namely Virginia, Georgia, Alabama and Tennessee, as the former US secretary of state was also looking to pick off one or two of Sander’s northern strongholds.

US major cable news declared Clinton the winner for the Tennessee and Alabama primaries as soon as polls closed at 8 p.m. local time (0100 GMT, Wednesday), exactly an hour after Clinton claimed victories in Virginia and Georgia.

On the Republican side, Trump was declared winner of the Republican primaries in Massachusetts, Tennessee, Alabama and Georgia.

As many as 12 US states and American Samoa took part in Super Tuesday contests this year, as Clinton and Trump, both of whom won three of the four early-voting contests in February, looked poised to cruise to party nomination after possible sweeping victories on Tuesday.