| Election Name: | 2020 Idaho Republican presidential primary |
| Country: | Idaho |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2016 United States presidential election in Idaho#Republican primary |
| Previous Year: | 2016 |
| Next Year: | 2024 |
| Election Date: | March 10, 2020 |
| Outgoing Members: | VT |
| Elected Members: | MI |
| Party Name: | no |
| Image1: | File:Donald Trump official portrait (cropped).jpg |
| Candidate1: | Donald Trump |
| Color1: | 283681 |
| Home State1: | Florida[1] |
| Delegate Count1: | 32 |
| Popular Vote1: | 111,136 |
| Percentage1: | 94.48% |
| Candidate2: | Bill Weld |
| Color2: | 00A9E0 |
| Home State2: | Massachusetts |
| Delegate Count2: | 0 |
| Popular Vote2: | 2,486 |
| Percentage2: | 2.09% |
The 2020 Idaho Republican presidential primary took place on March 10, 2020.[2] Six candidates filed to run in the presidential primary.[3]
Incumbent United States President Donald Trump was challenged by five candidates: businessman and perennial candidate Rocky De La Fuente of California, entrepreneur and investor Bob Ely of Massachusetts, entrepreneur and attorney Matthew Matern of Louisiana, former congressman Joe Walsh of Illinois, and former governor Bill Weld of Massachusetts. Walsh withdrew from the race prior to the primary.
| Candidate | Votes | % | Estimated delegates | |
|---|---|---|---|---|
| (incumbent) | 112,373 | 94.46% | 32 | |
| 2,486 | 2.09% | 0 | ||
| (withdrawn) | 2,341 | 1.97% | 0 | |
| 647 | 0.54% | 0 | ||
| 637 | 0.54% | 0 | ||
| 474 | 0.40% | 0 | ||
| Total | 118,311 | 100% | 32 |