All 9 Uses

republic
in
Killing Kennedy
(Auto-generated)

He knows he has offended good friend and longtime supporter Frank Sinatra by canceling his plans to spend the weekend at Sinatra's house and staying at the home of Crosby, a Republican, of all things—but the president will deal with that symbolism later.
p. 71.4
Chris Dumphy, a Florida Republican, connects Lawford with Bing Crosby, solving Law-ford's first problem.
p. 80.2 *
And he's a Republican!
p. 80.9
Whatever happens next has nothing to do with being a Democrat or a Republican, and everything to do with what's best for the American people.
p. 111.6
The state is growing increasingly conservative and Republican.
p. 193.5
After winning the 1964 election in a landslide over Arizona's Barry Goldwater (a Republican defeat JFK had predicted), Johnson began to mismanage the war in Southeast Asia.
p. 297.1
He switched from the Democratic to the Republican Party, and ran for president in 1980.
p. 299.8
Frank Sinatra became a Republican in the years after John Kennedy's Palm Springs snub and was a well-known supporter of President Ronald Reagan.
p. 301.1
General Mai Huu Xuan of the Army of the Republic of Vietnam (ARVN) leads a convoy consisting of an armored personnel carrier and two jeeps into the church courtyard.†
p. 230.6

Definitions:

(1) (republic as in: the country is a republic)
of a system of government in which a majority of citizens elect representatives to make laws; or someone in favor of such a form of government
(2) (meaning too common or too rare to warrant focus)
As a proper noun, the word form Republican is commonly used to describe one of the major U.S. political parties. It is and has been used by many other organizations such as The Irish Republican Army.