It's Election Tuesday and voting is open from 7 a.m. to 8 p.m.

Tri-town polling stations are as follows:

Mattapoisett: Old Hammondtown School, 20 Shaw St.

Marion: VFW, 465 Mill St. (Route 6)

Rochester: Rochester Senior Center, 67 Dexter Lane.

To learn more about the election, see below:

National election > Local election > Unopposed candidates

Ballot questions

Question 1: A second license for a slots gambling parlor

The state currently has only one license for a slots parlor, which allows for electronic gambling, but developer Eugene McCain wants to open a second parlor in Revere near the Suffolk Downs horse race track. The question specifically states the parlor has to be on a minimum of four acres and within 1,500 feet of a horseracing track. With a “yes” vote, this question would give the Massachusetts Gaming Commission the right to issue a second slots parlor license.

Question 2: Expanding charter schools

A “yes” vote on this question would allow the state to increase its limit on charter schools by 12 each year or allow charter schools to expand enrollment. A “no” vote would keep the state’s cap on charter schools at 120. Currently, there are 78 charter schools in the state, and for each one, students are selected by lottery.

Question 3: Farm animal confinement

A “yes” on this question would prohibit a farmer or “operator” from confining a pig, calf raised for veal or egg-laying hen in such a way that it cannot lay down, stand up, fully extend its limbs, or easily turn around. Farmers would have until 2022 to get rid of restrictive enclosures. Additionally, the law would prohibit business owners from selling eggs, veal or pork if they originated from such an environment. A $1,000 penalty for each violation accompanies this law.

Question 4: Recreational marijuana

If it receives a “yes,” this ballot question would legalize recreational marijuana use for those who are at least 21 years old. The measure would allow those of age to grow up to six marijuana plants per person in their residences with a total of 12 plants for two or more residents. Additionally, those ages 21 or older could possess up to one ounce of marijuana outside their home, up to 10 ounces inside their home and give someone 21 or older a maximum of one ounce without compensation. With a “yes” vote, municipalities can also decide whether or not to permit the sale of marijuana to be consumed onsite at commercial establishments. A state commission would also be formed to regulate the industry.

For more information, watch WBUR's short videos explaining the issues.

National election

President

This just in, former First Lady and Secretary of State Hillary Clinton (D) and billionaire businessman Donald Trump (R) are running for president. But they’re not the only ones. Former New Mexico governor Gary Johnson was nominated as the Libertarian candidate while Harvard-educated physician Jill Stein is running on the Green Party ticket.

U.S. Congress

Five people are running for the ninth district representative in U.S. Congress. Incumbent Bill Keating (D-Bourne) was first elected in 2010 and is looking to hold onto his seat. He is challenged by Mark Alliergro (R-Falmouth), a research scientist and biologist. Also on the ballot are Christopher Cataldo (U-Norwell) candidate and banker; Paul Harrington (I-Chatham), a lawyer and former president of the DeWolfe Companies real estate company; and Anna Raduc (U-Halifax) who has a background in social work.

Local election

Plymouth County sheriff

Incumbent Joe McDonald Jr. (R-Kingston) is running for his third term as sheriff of Plymouth County. McDonald is the Massachusetts Sheriffs' Association vice chair, and is co-chair of the Plymouth County Drug Abuse Task Force with District Attorney Tim Cruz. Before his election to sheriff, McDonald was an assistant district attorney for the county.

Scott Vecchi (D-Plymouth) is a retired gunnery sergeant of the U.S. Marine Corps and an Iraq veteran with 23 years of experience in the area of police and corrections. Vecchi previously worked as a corrections officer in Suffolk County. He also holds a degree in law from UMass Law at Dartmouth and owns Mayflower Taxi in Plymouth.

State senator

Marion voters will be asked to vote for one of two candidates, incumbent Marc Pacheco (D-Taunton) and Sandra Wright (R-Bridgewater).

Pacheco has been in the public eye for more than 30 years. He has served under the mayor of Taunton as a budget director and chief of staff and worked on the New England Board of Higher Education as a senate delegate with Gov. Charlie Baker. Pacheco holds a master's degree in public administration at Suffolk University.

Wright’s experience includes a position on the Bridgewater Board of Health from 2003-2012 and was elected as Plymouth County Commissioner in 2010. She worked at the emergency room of the Good Samaritan Hospital for 18 years and 15 years as a firefighter EMT instructor at Massachusetts Maritime Academy. Additionally, Wright has experience as businessperson in energy services.

County commissioner

Three people are running for two positions as Plymouth county commissioner. Incumbents Greg Hanley (D-Pembroke) and Daniel Pallotta (R-Hanover) are challenged by Lincoln Heineman (D-Scituate).

Regional School Committee (Marion only)

There are numerous people running for the Regional School Committee for Upper Cape Cod Regional Vocational Technical High School, but only one region is contested. Two people are running for the Falmouth representative: Dana Mortimer and Maryann Smith. The uncontested candidates, all incumbents, are as follows with the town they would like to represent: Elizabeth Magauran (Marion), Mary Crook (Bourne), Steven Chalke (Sandwich) and Robert Fichtenmayer (Wareham)

Unopposed candidates

The follow candidates are running unopposed:

Councillor – Joseph Ferreira (D-Somerset), incumbent

State Representative ­­– Bill Straus (D-Mattapoisett), incumbent

State Senator (Mattapoisett) – Mark Montigny (D-New Bedford), incumbent

State Senator (Rochester) ­­– Michael Rodrigues (D-Westport), incumbent