read this article: https://www.bloomberg.com/markets/rates-bonds

What was the spread at the beginning of 2018, before the recent election?

Why does Lachman (author of the article) think that Italys government would default on its debt if Italy left the euro?

Why does he think that such a default would lead to a European banking crisis that would hurt the US?

If Italys new government carries out the promised of the 5 Star Movement and the League to cut taxes and increase government spending, what is likely to happen to the interest rate on Italian government bonds and the amount the government pays to bond holders?

Should Trump avoid a trade war with the EU in order to keep Italy from leaving the euro and defaulting on its government debt?