Hobart significantly expanded the powers of the vice presidency , becoming a presidential adviser , and taking a leadership role as president of the Senate . Between his advisory and leadership roles , Hobart was perhaps the most influential vice president since Martin Van Buren . Although Magie , writing in 1910 , stated that Hobart 's death " fixed his memory at the height of his fame " , the former vice president is today little remembered . According to Hatfield , he is best known for his death , clearing the way for the ascent of New York Governor Theodore Roosevelt , who took Hobart 's place on the Republican ticket in 1900 and succeeded as president after McKinley 's assassination in 1901
McKinley 's assassination
Assassination of William McKinley
Garret Hobart