By Nicolás Misculin BUENOS AIRES (Reuters) -Tens of thousands of Argentines marched in the streets of Buenos Aires on Wednesday, banging drums and chanting in a show of support for ex-president Cristina Fernandez de Kirchner as she started a six-year sentence under house arrest for corruption.

Argentina’s Supreme Court has upheld a six-year prison sentence against Cristina Fernández de Kirchner, the polarizing former president and one of the country’s most influential politicians, barring her from public office for life.