Several challenges to Pennsylvania’s newly approved House and Senate districts — coming from a united Democratic Senate caucus, several citizens, and representatives from to-be separated state boroughs — came before the state Supreme Court Monday, as the justices heard appeals to the state Legislative Reapportionment Commission’s final decision on the new districts.

The high court heard the most substantial arguments first, coming from an attorney representing a band of citizens led by an Allentown piano teacher, along with the lawyer for Senate Minority Leader Jay Costa, D-Allegheny, the lone objector on the five-member commission. Other arguments spanned the state, from McKeesport to West Chester, in addition to a pro se petition from a Hamburg man.