The Libertarian Party (national) compiled 2014 general election results for the US Senate from across across the country:
In 2014, there were 22 states with Libertarian candidates on the ballot for U.S. Senate. Six candidates got at least 3%. The average Libertarian percentage was 2.3%.
I am one of the 6 Libertarian Candidates, nation-wide, who received 3% or more of the vote! My final official tally was at 44,916 votes which is 3.01%. So as an American Libertarian I had a reasonably strong result.
$9.3 million – Jeff Merkley
$3.6 million – Monica Wehby
About $1,000 – Mike Montchalin
The take-away is that it takes about $3.5 million to run a credible campaign for the US Senate in Oregon. I think I could do it for a million dollars.