Here's a short story:

While there is some international commonality in the way political parties are recognized, and in how they operate, there are often many differences, and some are significant. Many political parties have an ideological core, but some do not, and many represent very different ideologies than they did when first founded. In democracies, political parties are elected by the electorate to run a government. Many countries have numerous powerful political parties, such as Germany and India and some nations have one-party systems, such as China. The United States is a two-party system, with its two most powerful parties being the Democratic Party and the Republican Party. 

The first political factions, cohering around a basic, if fluid, set of principles emerged from the Exclusion Crisis and Glorious Revolution in late-17th-century England. The Whigs supported Protestant constitutional monarchy against absolute rule and the Tories, originating in the Royalist (or "Cavalier") faction of the English Civil War, were conservative royalist supporters of a strong monarchy as a counterbalance to the republican tendencies of Whigs, who were the dominant political faction for most of the first half of the 18th century; they supported the Hanoverian succession of 1715 against the Jacobite supporters of the deposed Roman Catholic Stuart dynasty and were able to purge Tory politicians from important government positions after the failed Jacobite rising of 1715. The leader of the Whigs was Robert Walpole, who maintained control of the government in the period 1721–1742; his protégé was Henry Pelham (1743–1754). (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: who was the Whigs leader?
Guess: Robert Walpole

Question: who was Walpole's protege?
Guess: Henry Pelham

Question: when were the first factions created?
Guess: late-17th-century

Question: what faction was in control during the 18th century?
Guess: Whigs

Question: how many US parties are mentioned?
Guess: Two

Question: do countries have only 1 party systems?
Guess: Some do, such as China

Question: when was the Jacobite rising?
Guess: 1715

Question: who was numerous political parties?
Guess: Germany and India

Question: is the US a 3-party system?
Guess: No

Now answer the following question in the same format.

Question: what is the name of one of the US parties

the Republican Party