In case you haven’t noticed, election season is heating up. Primary season has been underway in some states, giving voters their chance to choose candidates who’ll run in November elections.

Let’s be frank here. This is no ordinary midterm-election year. At stake is control of Congress and statehouses across our deeply divided nation for the second half of President Trump’s first term.

There is plenty reason for voters to pay attention, no matter your choice of political parties or independent status. There’s been a major overhaul of the income tax system and efforts to roll back major portions of the Affordable Care Act (ACA). Across our vast countryside, states are making important changes in Medicaid, which is a health and long-term care lifeline for low-income residents and people with disabilities.

Take it from Larry Sabato, founder and director of the University of Virginia’s Center for Politics, “I really believe this year’s midterm are the most important in many years. The result will determine whether Republicans, and President Trump especially, will be able to get their top priorities through Congress.” Sabato’s remarks appeared in the April issue of AARP Bulletin.

The balance of power in both houses of Congress, as well as in many state legislatures and governorships, will be decided this fall.

Incumbents and political candidates have been on the campaign trail for months. The same when it comes to political advertising on television. Millions of dollars already have been spent on campaigns. We shudder to think what the bottom line will total when the election is over.

In a nutshell, here’s a sketch of what lies ahead:

■ All 435 seats in the House of Representatives are up for election. Currently, Republicans control the House 239 to 193. There are four vacancies.

■ There are 100 U.S. Senate seats, and 35 are for grabs. Republicans now control the Senate 51 to 49.

■ Governors will be chosen in 36 states. Currently 26 governor’s mansions in these states are occupied by Republicans, nine by Democrats and one by an independent. There will be governor races in both Wisconsin and Michigan.

■ Thousands of state-level senators and representatives will be in election contests. Keep in mind the state leaders elected this year will influence how district lines are carved out for the U.S. House and state legislatures after the U.S. Census of 2020.

Election rules are different in each state. Voters should make sure they understand the rules. Information is available at their respective town, village, county and municipal halls.

The U.S. has in place a democratic election system. Some may not agree with it, but it is the system in a free democracy.

There’s an old saying that goes like this: “Democracy is good because other systems are worse.”