State Sen. Frank Morse announced Friday he plans to resign on Monday.
Morse, 68, a Republican who lives in North Albany, has represented Senate District 8 for 10 years.
The district covers Albany and Corvallis and other parts of Linn and Benton counties.
His term has two years to run, and his successor will be appointed jointly by the county commissioners of Linn and Benton counties, who must name a Republican to fill the vacancy within 30 day.
For several legislative sessions Morse has tried to reform state budgeting and the tax structure in order to provide a cushion against bad times.
In a recent conversation, he sounded tired, and it appeared the process -- trying to buck the leadership on the subject of tax reform -- had worn him out.
He said he wasn't in the Senate just to be called a senator; he wanted to get something done.