It’s primary day in 21 cities and towns.

The polls opened at 6 a.m. and they will be open until 8 p.m. and you must be registered as a Democrat or Republican to take part and vote.

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These are the towns that have primaries on Tuesday:

Bloomfield (D)

Bridgeport (D)

Chester (D)

Greenwich (R)

Griswold (R)

Haddam (R)

Hamden (D)

New Britain (D)

New Haven (D)

New London (D)

North Haven (D)

Norwalk (D)

Oxford (R)

Plainfield (R)

Stamford (D)

Sterling (R)

Stratford (D)

Thomaston (R)

Voluntown (R)

Waterbury (R)

Wolcott (R)

You can find the sample ballots here.

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