He graduated from the law school of the Comenius University in Bratislava. After graduation he went on to work as a lawyer, and later an independent attorney.
Danko has been active in politics since 2006 when he started as MP assistant. In 2010-2012 he served as the first deputy chair of the Slovak National Party (SNS) under Ján Slota, and in 2012 he replaced Slota as chairman.
He ran from the top post of his party’s slate in the March 5 election in which his party made it back to the parliament.