Sharadze was involved in the anti-Soviet Georgian national movement in the late 1980s and was closely associated with Zviad Gamsakhurdia who became, in 1991, the first elected President of Georgia. After Gamsakhurdia's ouster in the 1992 coup d'etat, Sharadze was in opposition to Eduard Shevardnadze's government. In 1995, he founded the nationalist "Ena, Mamuli, Sartsmunoeba" ("Language, Homeland, Religion") movement, and was elected to the Parliament of Georgia. In 2002, he spearheaded, though unsuccessfully, a drive to try to ban the Jehovah's Witness religious denomination from the country, and was heavily criticized by the Georgian human rights activists and reformist politicians for his sympathy to the group of Orthodox radicals led by the ex-priest Basil Mkalavishvili which was involved in pogroms of the Jehovah's Witnesses. In 2003, he joined Shevardnadze's election bloc "For A New Georgia" in the controversial parliamentary elections which were widely denounced as rigged and triggered mass demonstrations concluded with the bloodless Rose Revolution. Since then, Sharadze withdrew from politics, but attempted to organize a civic movement against Western influences in Georgia, denouncing the civil society work of philanthropist George Soros as potentially more pernicious to Georgia than the Bolshevik revolution.