Answer:
1- Formed by Theodore Roosevelt in 1912 --- Bull Moose Party
2- Republican President --- Dwight D. Eisenhower
3- A person who currently holds an office --- Incumbent
4- Democratic President --- Jimmy Carter
5- Formed by Ross Perot in 1992 --- United We Stand Party
6- To yield or surrender; admit or acknowledge --- Concede
Step-by-step explanation:
1- The Progressive Party of 1912 was an American party formed by Theodore Roosevelt, after a split with the Republican Party, represented by William Howard Taft. It became known as the Bull Moose Party.
2- Dwight David Eisenhower was a military man and politician who served as the 34th president of the United States between 1953 and 1961, for the Republican Party.
3- It is called incumbent to the person who currently holds a public or political office.
4- Jimmy Carter, is an American politician of the Democratic Party who was the thirty-ninth president of the United States from 1977 to 1981.
5- Ross Perot ran for the 1992 election as an independent candidate, representing United We Stand America. He received 19% of the votes.
6- To concede means granting the other party what it wants. This may be admitting something, or giving something materially.