Helms was one of the most outspoken, controversial figures of his time. He was a hero of social and fiscal conservatives and many of his stands were considered bigoted and racists.

Even though he was fiscally conservative he protected tobacco subsidies and was a hero of the industry.

Aside from his controversial stands socially his most important work might be considered his fervent anti communist stands and as chairman of the foreign relations committee he used his influence to fight communist all over the world.

Here is the wiki article on him.