In the 113th Congress, Pennsylvania's Junior Senator is Pat Toomey (R). He was elected on the 2nd of November 2010 to the term beginning on the 3rd of January 2011 and ending on the 3rd of January 2017.
The difference is that the senior Senator has been in office longer than the junior Senator.
As of October 2021, Maryland's senior senator is Ben Cardin and its junior senator is Chris Van Hollen.
Barack Obama served as a junior senator from Illinois from 2005 to 2008.
A junior senator has served in the senate for a shorter time than the other senator from his state; that other senator from his state is a senior senator.
He was the junior senator from Illinois.
There are 2 senators from each state each serving 6-year terms. The senator with the longer term in office is known as the "senior" senator while the other is known as the "junior" senator.
Debbie Stabenow
Barbara Boxer
Begich.
Yes she is the senior Senator and Susan Collins is the junior Senator.
He was a Junior Senator for Illinois.
She is the junior US Senator from Maine.