Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rd. | Race | Pole position | Fastest lap | Most laps led | Winning driver | Winning team |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | St. Petersburg | Esteban Guerrieri | Conor Daly | Josef Newgarden | Josef Newgarden | Sam Schmidt Motorsports |
| 2 | Barber | Víctor García | Víctor García | Víctor García | Víctor García | Team Moore Racing |
| 3 | Long Beach | Esteban Guerrieri | Conor Daly | Josef Newgarden | Conor Daly | Sam Schmidt Motorsports |
| 4 | Indianapolis | Bryan Clauson | Brandon Wagner | Josef Newgarden | Josef Newgarden | Sam Schmidt Motorsports |
| 5 | Milwaukee | Esteban Guerrieri | Josef Newgarden | Esteban Guerrieri | Esteban Guerrieri | Sam Schmidt Motorsports |
| 6 | Iowa | Esteban Guerrieri | Bryan Clauson | Josef Newgarden | Josef Newgarden | Sam Schmidt Motorsports |
| 7 | Toronto | Esteban Guerrieri | Esteban Guerrieri | Stefan Wilson | Stefan Wilson | Andretti Autosport |
| 8A | Edmonton | Josef Newgarden | Josef Newgarden | Esteban Guerrieri | Esteban Guerrieri | Sam Schmidt Motorsports |
| 8B | Edmonton | Josef Newgarden | Esteban Guerrieri | Josef Newgarden | Josef Newgarden | Sam Schmidt Motorsports |
| 9 | Trois-Rivières | Esteban Guerrieri | Esteban Guerrieri | Esteban Guerrieri | Esteban Guerrieri | Sam Schmidt Motorsports |
| 10 | Loudon | Josef Newgarden | Josef Newgarden | Josef Newgarden | Josef Newgarden | Sam Schmidt Motorsports |
| 11 | Baltimore | Conor Daly | Josef Newgarden | Conor Daly | Gustavo Yacamán | Team Moore Racing |
| 12 | Kentucky | Stefan Wilson | Duarte Ferreira | Stefan Wilson | Stefan Wilson | Andretti Autosport |
Question:
Who had the pole(s) when esteban guerrieri led the most laps round 8a and josef newgarden had the fastest lap?
Answer:
Josef Newgarden