Berlusconi's political future at risk as challenge to tax fraud conviction enters 2nd day

Silvio Berlsuconi's 20-year political career risks coming to an abrupt halt as his challenge to a fraud conviction enters a second day.

Berlusconi and three others were convicted in October of tax fraud in the purchase of TV rights for Berlusconi's Mediaset network. The three-time former premier was sentenced to four years with a five-year ban on public office, which was confirmed on appeal.

If confirmed by Italy's highest court, Berlusconi would lose his Senate seat and be banned from running in elections.

The state prosecutor has recommended lowering the public office ban to three years — which Berlusconi's defense said indicates a "blatant error" in the sentencing.

Berlusconi's defense is expected to be the last to argue Wednesday. A decision could come later Wednesday or Thursday.