His main job was to deal with the government's financial affairs.
Senators are more vulnerable to defeat than their colleagues in the House <span> because Senate candidates are more evenly matched in spending
Money often became a very decisive factor for political candidates for winning the votes through campaigns and advertisement.
Similar spending means that they wouldn't have enough found to out-perform their competitor, which make the senators more prone to losing.</span>
The geographic factor was actually their location.
