Senators accept bribes from various industries and wealthy individuals in order to block or advance legislation on their behalf.
Because a Senator's electorate is the entire state, they are more likely to be servants of large state-wide industries like dairy in WI, oil & gas in TX, etc.
This is as opposed to the Congress, where the make-up of their specific district can alter which moneyed interests they benefit most from serving.
Every state has only 2 federal Senators, compared to a variable amount of congressional reps based on population. So individual Senators are generally considered more powerful.
Yes! House of reps is what I meant. Thank you.
There are some exceptions and it's definitely not all they do, but attending to the interest of the powerful is their day-to-day work.