Every one of FIFA's 200-plus members holds a single vote, and regions tend to vote in blocks.
"Hosting a FIFA World Cup™ is an extraordinary honor and privilege", said Steven Reed, President of Canada Soccer and Co-Chair of the United Bid.
The U.S hosted the World Cup previously in 1994 while Mexico hosted it in 1970 and 1986.
The 2018 tournament kicks off in Russian Federation on Thursday and the 2022 World Cup is to take place in Qatar.
"Hosting the 2026 FIFA World Cup is a rare and important moment to demonstrate that we are all truly united through sport", Cordeiro said.
Just to add to the complexity, there is a third option for all voters: neither Morocco or United and we start a new bidding process.
Morocco's presentation, led by bid chairman Moulay Hafid Elalamy, touted its location, culture, ease of intra-country travel, public support, modular stadiums and a promised $5 billion profit.
"I'm convinced that it was critical to get in front of people, face-to-face", Cordeiro said.
Losing the bid isn't going to send the soccer train into reverse, yet the benefits of welcoming the world's biggest sports event to American soil are multiple and obvious. The only other time multiple countries shared the World Cup was 2002, when Japan and South Korea were given passes into the competition.
Morocco has said it needs to spend nearly $16 billion (£12 billion) on infrastructure while the North American bid's revenue forecast ($14.3bn) far outstrips what Morocco has to offer ($7.2bn).
"Each of the United Bid's 23 proposed stadiums are fully built, occupied, and operational, ensuring long-term use following the 2026 World Cup".
In addition to its low evaluation score, FIFA's evaluation of the Morocco bid also raised concerns about the potential treatment of the LGBT community.
The United Bid wasn't only about flashing glitz, however.
United 2026, in an effort to dispel the notion that is largely a US campaign, replaced chairman Sunil Gulati, former president of the United States Soccer Federation, with co-chairs from each of the three nations. North America will host the six-team playoff tournament in November 2025 to decide the last two places in the 48-team lineup.
Cordeiro then promoted the scale of the bid, saying, "With an expected 5.8 million tickets sold, the world's largest sponsorship market and match times for every time zone in the world, we expect record profits for Federation Internationale de Football Association of $11 billion".
Now, that dream is very much alive.
The decision will be a shot in the arm for football, or soccer, in the U.S., after the national team failed to qualify for the 2018 finals in a huge setback for the game there.
World champions Germany (62,541), China (40,251) and Australia (36,359) make up the top 10, with Poland, Sweden and Denmark also expected to be backed by thousands of supporters during the tournament. "And the US-Canadian relationship right now is rocky - with both sides threatening a trade war", he said.
"I'm sure this will, in time, make us stronger". "This is not geopolitics, we're talking about football and what is fundamentally, at the end of the day, the best interest of football and our footballing community".