Representatives were up for election in 2018; the Democratic-controlled New Mexico Senate did not hold regularly-scheduled elections in 2018. Democrats retained control of the house of representatives. New York All of the seats of the New York State Senate and the New York State Assembly were up for election in 2018. Democrats won control of the state senate and retained control of the state assembly. North Carolina All of the seats of the North Carolina Senate and the North Carolina House of Representatives were up for election in 2018. Republicans retained control of both chambers, but Democrats won enough seats to break the Republican legislative super-majority. North Dakota Half of the seats of the North Dakota Senate and the North Dakota House of Representatives were up for election in 2018. Republicans retained control of both chambers. Ohio Half of the seats of the Ohio Senate and all of the seats of the Ohio House of Representatives were up for election in 2018. Republicans retained control of both chambers. Oklahoma Half of the seats of the Oklahoma Senate and all of the seats of the Oklahoma House of Representatives were up for election in 2018. Republicans retained control of both chambers. Oregon Half of the seats of the Oregon State Senate and all of the seats of the Oregon House of Representatives were up for election in 2018. Democrats retained control of both chambers. Pennsylvania Half of the seats of the Pennsylvania State Senate and all of the seats of the Pennsylvania House of Representatives were up for election in 2018. Republicans retained control of both chambers, but Democrats picked up enough seats to break the Republican legislative supermajority. Rhode Island All of the seats of the Rhode Island Senate and the Rhode Island House of Representatives were up for election in 2018. Democrats retained control of both chambers. South Carolina All of the seats of the South Carolina House of Representatives were up for election in 2018; the Republican-controlled South Carolina Senate did not hold regularly-scheduled elections in 2018. Republicans retained control of the house of representatives. South Dakota All of the seats of the South Dakota Senate and the South Dakota House of Representatives were up for election in 2018. Republicans retained control of both chambers. Tennessee Half of the seats of the Tennessee Senate and all of the seats of the Tennessee House of Representatives were up for