Information for this story came from the Associated PressIndiana Gov. Mitch Daniels is endorsing Mitt Romney for the Republican presidential nomination that he has all but secured. The endorsement comes after Daniels declined for months to publicly support any of the Republican candidates when there was no presumptive nominee. The endorsement statement from Daniels echoed his message raising concerns about the federal debt that drew him attention as a possible GOP presidential candidate before he bowed out last yearDaniels says Romney has proven that he understands the nation's challenges and "is prepared to summon Americans to the changes that will restore the American Dream.''Daniels has been mentioned as a possible choice for vice president.The Romney campaign initiated that search this week.