# Senate Constituency no. 42

Senate Constituency no. 42 (Polish: Okręg wyborczy nr 42 do Senatu) is a single-member constituency for the Senate of Poland comprising five districts of the city of Warsaw: Praga-Południe, Praga-Północ, Rembertów, Targówek, Wesoła. Incumbent senator is Marek Borowski (Civic Platform) elected in 2023 parliamentary election. He has held the seat for four terms in a row since the constituency was established in 2011.

## List of senators

| Election | Senator | Party |
| 2011 | Marek Borowski | Independent |
| 2015 | Marek Borowski | Independent |
| 2019 | Marek Borowski | Civic Platform |
| 2023 | Marek Borowski | Civic Platform |

## Election results
### 2011

| Candidate | Candidate | Party | Votes | % |
| | Marek Borowski | Independent | 104,238 | 50.26 |
| | Zbigniew Romaszewski | Law and Justice | 59,153 | 28.52 |
| | Krzysztof Rybiński | Independent | 33,665 | 16.23 |
| | Radosław Paweł Piesiewicz | Independent | 10,361 | 5.00 |
| Total | Total | Total | 207,417 | 100.00 |
| Valid votes | Valid votes | Valid votes | 207,417 | 96.14 |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 8,333 | 3.86 |
| Total votes | Total votes | Total votes | 215,750 | 100.00 |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 335,504 | 64.31 |
| Source: National Electoral Commission |||||

### 2015

| Candidate | Candidate | Party | Votes | % | +/– |
| | Marek Borowski | Independent | 124,064 | 60.69 | +10.43 |
| | Piotr Łukasz Andrzejewski | Law and Justice | 80,356 | 39.31 | New |
| Total | Total | Total | 204,420 | 100.00 | – |
| Valid votes | Valid votes | Valid votes | 204,420 | 95.47 | |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 9,709 | 4.53 | |
| Total votes | Total votes | Total votes | 214,129 | 100.00 | |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 328,804 | 65.12 | +0.81 |
| Source: National Electoral Commission ||||||

### 2019

| Candidate | Candidate | Party | Votes | % | +/– |
| | Marek Borowski | Civic Platform | 153,994 | 64.55 | +3.86 |
| | Cezary Andrzej Jurkiewicz | Law and Justice | 84,557 | 35.45 | New |
| Total | Total | Total | 238,551 | 100.00 | – |
| Valid votes | Valid votes | Valid votes | 238,551 | 97.21 | |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 6,838 | 2.79 | |
| Total votes | Total votes | Total votes | 245,389 | 100.00 | |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 329,530 | 74.47 | +9.35 |
| Source: National Electoral Commission ||||||

### 2023

| Candidate | Candidate | Party | Votes | % | +/– |
| | Marek Borowski | Civic Platform | 178,104 | 69.72 | +5.17 |
| | Wojciech Jakub Zabłocki | Law and Justice | 77,370 | 30.28 | New |
| Total | Total | Total | 255,474 | 100.00 | – |
| Valid votes | Valid votes | Valid votes | 255,474 | 97.23 | |
| Invalid/blank votes | Invalid/blank votes | Invalid/blank votes | 7,267 | 2.77 | |
| Total votes | Total votes | Total votes | 262,741 | 100.00 | |
| Registered voters/turnout | Registered voters/turnout | Registered voters/turnout | 317,867 | 82.66 | +8.19 |
| Source: National Electoral Commission ||||||