Betteridge's law of headlines applies to your linked article.
> The House unanimously adopted bipartisan amendments to H.R. 2685, the “Department of Defense Appropriations Act of 2015.” And one of them specifically blocks training of the “Ukrainian neo-Nazi paramilitary militia ‘Azov Battalion.’”
> This is in addition to criteria established in an amendment to the Foreign Assistance Act of 1961, originally sponsored by Sen. Patrick Leahy, known as “the Leahy Vetting Process.” The Leahy process consists of screening foreign forces applying for U.S. Government training and support to certify that they haven’t committed any “gross human rights violations.” If they are found to have done so, support is withheld.
So, no, the US is not intentionally funding neonazis and in fact, is trying very hard not to. They are providing training requested by the Ukrainian Ministry of Interior against a Russian aggressor that has shot down a civilian passenger aircraft, among many other crimes.