CHICAGO (Reuters) - The jury in the second corruption trial of former Illinois Governor Rod Blagojevich said on Monday it had reached a verdict on 18 of 20 counts, the court clerk and spokesman for the U.S. attorney's office said.

The verdict will be announced between 1 and 2 p.m. local time on the 10th day of jury deliberations following a 7-week trial. The jury said it was deadlocked on two counts, the U.S. attorney's office said.

Blagojevich, a Democrat elected to two terms, was tried on charges he used his office to seek campaign donations, including an effort to barter the U.S. Senate seat formerly occupied by President Barack Obama. His first trial ended last year with a guilty verdict on one count of lying to investigators, with the jury deadlocked on the other charges.

(Reporting by Mary Wisniewski and Andrew Stern; Editing by Greg McCune)