CBS News: Romney to win Indiana and N.C. primaries (CBS News) -- Mitt Romney will win the Republican primaries in Indiana and North Carolina Tuesday, CBS News projects. The expected wins bring Romney closer, but not all the way, to the party's nomination, which he is widely expected to win as early as later this month. The former Massachusetts governor now has close to 900 of the 1,144 delegates needed to win the nomination, according to CBS News estimates. Voters in West Virginia are also headed to the polls today, bringing the total number of available delegates in those three states to more than 100. With no serious competition, Romney is also expected to cruise to victory in West Virginia. Former rival Newt Gingrich dropped his bid for the presidency last week after announcing the prior week that he would be giving up his White House hopes. Former Pennsylvania Sen. Rick Santorum gave up his run for the White House last month. Santorum endorsed Romney late Monday night in an email to supporters. Texas Rep. Ron Paul, who has thus far garnered an estimated 89 delegates without winning any contests outright, remains in the race. Romney has been campaigning vigorously against President Obama and presenting himself as a successful businessman who can lead the country back to economic prosperity. The two men are in a tight race and likely to engage in a fierce fight for the White House, according to the latest polls. In a Gallup/ USA Today poll of 12 swing states released this week, Mr. Obama edges out Romney 47 percent to 45 percent -- that's within the poll's four-point margin of error and closer than Gallup's last swing state poll from March, when Mr. Obama held a nine-point lead.