With electoral voting being held in Alaska, Alabama, Arkansas, Colorado, Georgia, Massachusetts, Minnesota, Oklahoma, Tennessee, Texas, Vermont, Virginia, Wyoming and American Samoa on Tuesday (March 1), the various presidential campaign staffs used various types of appeals to solicit support. At the midday publishing time of this article, Donald J. Trump and Hillary Clinton both were maintaining double-digit leads over their rivals.

According to an NBC News/Survey Monkey poll released Tuesday, Trump trounces the rest of the field with 40 percent of support among Republicans nationwide. Marco Rubio trails far behind at 21 percent, with Ted Cruz in third at 18 percent.

GOP frontrunner and businessman Donald Trump kept with his "get out to vote to Make America Great Again concept." Trump leads on Tuesday among several demographic groups, but falls just short of Rubio's support among white evangelical Christian voters. For that group, Rubio edges out Trump 50-47 percent. Cruz is virtually tied with Trump among white evangelicals, with 49 percent to Trump's 47 percent.

Sen. Marco Rubio shared reasons why people are choosing him over the other Republican conservative candidate from Hispanic heritage. Rubio jumped five points since his aggressive debate performance last week, with his barrage of insults against the GOP front-runner continuing into the weekend. Cruz's support, in contrast, has slipped to the lowest levels it has ever been, reports CBS News.

Another GOP candidate, Sen. Ted Cruz, again emphasized that "conservative values are at his core." His overall theme has been:  "Take Our Country Back."

Former neurosurgeon Ben Carson continued with his quest to get voters to join his movement to "heal the nation and restore power to the people."

Gov. John Kasich, a Republican candidate, posed the following approach:  "Want to stop Hillary in November? Poll after poll shows that John Kasich is the only one who can." His typical battle cry has been "Kasich For US."

Democratic lead hopeful and former Secretary of State and former First Lady Hillary Clinton reminded everyone that "today is one of the most important days of this campaign." Among registered Democrats, Clinton leads Sanders, 51 percent to 41 percent. 

While contender Sen. Bernie Sanders posted that they needed help on Super Tuesday! "When you vote on election day, report delegate counts from your caucuses and turnout from your precincts." He hopes more voters #FeelTheBern.

The NBC poll was conducted from Feb. 22-28 among a national sample of 30,294 adults, including 26,859 who say they are registered to vote. Results have a margin of error of 1 percentage point.

Voters now have their eyes on a handful of overall presidential race factors:  How well Clinton and Trump will do; Will Cruz win Texas; If Rubio will finally get a win; and Will Carson Drop Out?