A main purpose of the president's State of the Union address is to

identify major policy issues.

explain Supreme Court decisions.

challenge congressional policies.

defend executive branch decisions.

The correct answer is Identify major policy issues.

The State of the Union address, given annually by the US President, usually involves the president outlining important policies. Each year, the president discusses a problem that he feels needs to be addressed within the next year. Some of the most common issues include healthcare, tax reforms, and education.