Conversation so far:
When was Dan Roonney ambassador to Ireland?
On March 17, 2009, President Obama announced he had nominated Dan Rooney to become the next U.S. ambassador to Ireland, citing the owner's longstanding support for Irish-American charitable causes.
Did Dan Rooney accomplish anything in that role?
Yes, in 2008, Dan Rooney gave $30,000 to a Democratic Party committee that aided Obama's campaign, according to CQ MoneyLine, a non-partisan group that tracks political contributions.

Question: How was he involved in Politics?
Self-contained rewrite: How was Dan Rooney involved in Politics?