Phoenix Police Chief Jeri Williams makes an announcement on Facebook ahead of President Donald Trump's visit to Phoenix for a rally on Aug. 22, 2017. Phoenix Police Department

The visit, which is his first to Arizona as president, is expected to draw massive crowds of supporters and protesters. 

The event will likely be similar to campaign-style rallies that have become part of his routine. Here's what you need to know whether you want to get inside to support the president or demonstrate outside. 

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How to get inside the rally 

Demonstrators participate in a march in support of President Trump in Phoenix on Saturday, March 25, 2017. (Photo: Ben Moffat/The Republic)

Attendees must register to obtain tickets, but registration does not guarantee entry, which is on a first-come, first-serve basis. 

Register at donaldjtrump.com/rallies/phoenix-az. Doors will open at 4 p.m. 

Anyone hoping to get inside will need to get in line hours ahead of time at the Phoenix Convention Center. Rally attendees often show up first thing in the morning and wait all day. 

In so many words, you will have to take the day off of work or school. 

What to bring 

Be prepared to stand outside for a long period of time. The weather forecast for Tuesday is mostly sunny with a high of 102 degrees. Consider bringing:

--- Snacks and a lot of water.

--- Cash. This will make it easier to buy Trump merchandise such as T-shirts, hats and pins, as well as snacks from any food vendors on the street. 

--- Wear comfortable shoes. 

--- A phone charger or an external battery. You don't want to be stuck with a dead phone as soon as Trump takes the stage. 

--- A sweater or second layer if you are easily cold. It will be scorching outside, but it's usually brisk inside the center. 

--- An exit plan. Coordinate with whoever is attending with you on where/when to meet up in case your phones die, cell service cuts out, or there is an emergency.