specifically for those that work as teachers and bus drivers. that makes a big difference, but that also supports all working class wages. the strength of public sector unions have been important economically for people that have to work for a living. the fact that unions exist supports everybody's wages and everybody's workplace environment. the fact that the public sector union still exists has blunt political implications. we've shown this chart a bunch of times on this show. every time we hear from people, why don't you show that chart more often? so here it is. these were the heavy weights when it came to outside spending in the 2010 election cycle. these were the ten groups that spent the most money on the election that year. six of the ten spent big time on the right. they spent on the republican side. they were led by the corporate-funded u.s. chamber of commerce, the far biggest spender in 2010.