DENVER, Colo. -- As Senator Barack Obama wrapped up his speech declaring himself the Democratic nominee Tuesday night, Colo. Gov. Bill Ritter announced he’s endorsing the Illinois senator for president.

Ritter says Obama's sense of independence and purpose make him appealing to Coloradans and Westerners. Ritter also called Obama the best person to help Americans "achieve their God-given potential."

Wednesday, the last three undeclared superdelegates in Colorado threw their support to Sen. Obama. They were Sen. Ken Salazar, Rep. John Salazar and Rep. Mark Udall.

In a statement sent to 7NEWS, Rep. Salazar said, “Senator Obama has my strong support and I look forward to helping him become the next President of the United States. Senator Obama is the candidate to bridge the divides in our country – between Democrat and Republican, between rich and poor, between the have and the have not’s. He is a strong leader who will help restore our stature in the world and he will go on to victory in November.”

Rep. Mark Udall released a statement that said, “I congratulate Senator Obama for securing the nomination to be our party's candidate for president in 2008. His nomination in Denver in August will represent an historic achievement, and I welcome his message of change and renewal at a time when our country is facing so many difficult challenges."

Sen. Salazar sent a statement to 7NEWS that said, "Senator Obama personifies this change and I pledge my full support for his candidacy. I am very much looking forward to helping Senator Obama become the next President of the United States. He is a tremendous candidate whose judgment, integrity, leadership, and vision are what our country needs right now. He will help bridge our divides and restore our stature and security in the world. "

Of Colorado’s 15 superdelegates, four pledged their support to Sen. Hillary Clinton. Obama secured the other 11 as of Wednesday.

The head of Colorado's Democratic Party, Pat Waak, threw her support behind Obama last week but said she supports Clinton's decision not to concede the race Tuesday.

"The senator has run a very hard race. She deserves respect in terms of deciding an appropriate time to withdraw from the race," said Waak.

"(Obama) just seems to be a walking expression of where our country is headed in early 21st century," Derrick Hudson, Assistant Professor of African and African-American Studies at Metro State College, said of Obama clinching the nomination.

Hudson told 7NEWS that Sen. Obama has energized many new, younger voters across the country.

"Students on this campus who normally glaze over when I would talk about electoral politics have been very engaged, so that alone has been very good to democratic process," Hudson said.