Can anything stop Donald Trump? The latest polls show him dominating the Republican field and running neck-and-neck with Joe Biden. But some say he is weaker than he seems.
Even with 91 criminal charges he could win
Historic: Trump is the first and only US president with a police booking photograph. Glossary
Georgia - A state in the southern USA. Also a country at the intersection of Europe and Asia.
Liberal - Liberalism is a school of political thought that stresses individual liberty. Liberals believe that society should not try to impose values or behaviours on individuals but should be tolerant of different lifestyles. A leading exponent of liberal thought was the 19th-century English philosopher John Stuart Mill, the author of the classic work On Liberty.
Primary elections - The elections through which Americans choose the candidates that will run for the major parties in the presidential election.
Insurmountable - Too great to be beaten.
Republican Party - Also known as the Grand Old Party or GOP, it is one of the USA's two major political parties. Its first president was Abraham Lincoln. It sits on the right of the political spectrum.
White House - The official residence of the US president, in Washington DC. Burnt by British troops in 1814, it was rebuilt and painted white to hide the smoke stains.