By Tami Luhby @ CNN

Obamacare touches just about everyone.

It's not just for the millions of people who have health insurance through the Obamacare exchanges or Medicaid expansion. 

Under Obamacare, senior citizens pay less for Medicare coverage and for their prescription drugs. Many people receive free contraceptives, mammograms, colonoscopies and cholesterol tests. And those with pre-existing conditions are no longer turned away. 

"The ACA made changes in every part of the health care system," said Larry Levitt, senior vice president at the Kaiser Family Foundation, of the Affordable Care Act. "Virtually everyone has been touched by the ACA." 

Some 20 million people have gained coverage under Obamacare. The nation's uninsured rate dropped to a record low 8.6% last year.  Obamacare remains the law of the land now that the Republican effort to repeal and replace it has been shelved. The Trump administration likely will make some changes to it, and lawmakers may try again to overhaul it. 

Here's how sweeping the landmark health care reform law is.....

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